263 results

Review and assessment of the impacts of the proposed broad areas of interest (BAOI) for MPA development in the SE region

Project number: 2005-083
Project Status:
Completed
Budget expenditure: $52,900.00
Principal Investigator: Colin Buxton
Organisation: University of Tasmania (UTAS)
Project start/end date: 28 Jun 2006 - 19 Dec 2006
Contact:
FRDC
TAGS
Social Science
Social Science
Marine Park
Individual Transferable Quota
Fisheries Management

Objectives

1. To quantify the commercial fisheries catch for key species within the proposed MPAs for the SE region
2. To quantify the commercial fisheries economic value associated with the catch within the proposed MPAs for the SE region
3. To quantify the socio-economic impact of the proposed MPAs on the commercial fishing industry
4. To quantify in terms of 1,2 &3 alternative approaches that meet industry needs without compromising biodiversity objectives of DEH.

Final report

ISBN: 0 9577587 6 6
Author: Colin Buxton
Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Final Report • 2006-02-01 • 4.18 MB
2005-083-DLD.pdf

Summary

On the 14 December 2005 the Australian Government announced detailed proposals for the establishment of an extensive network of Marine Protected Areas (MPAs) in the South-east Region of Australia. The 14 candidate MPAs would cover more than 170,000 square kilometres of Commonwealth waters off Tasmania, Victoria, southern New South Wales and eastern South Australia.

Simultaneously, the Australian Government’s fisheries management reform, including substantial reductions in Total Allowable Catch (TAC) and the purchase of fishing licenses to remove effort from over fished fisheries, was extended to fishers – both Commonwealth and State licensed – who were affected by the creation of the MPA network. By running a single adjustment package it was reasoned that affected businesses need only go through one adjustment process (rather than two), and businesses in the South-east Region would not face a series of changes over several years.

The gross value of fisheries production from the South-east Region, at over $500 million per annum, represents an estimated 23% of the total gross value of Australian fisheries production. 

At the time of the announcement of the proposed MPA network, the boundaries of only two candidate MPAs within the 11 Broad Areas of Interest (BAOIs) had been discussed in any detail with the fishing industry. The Australian Government had brought forward the release of the proposed MPA network so that fishermen could make decisions about their future in the full knowledge of their operating environment – knowing the full extent of proposed exclusions from MPAs as well as knowing how their fisheries would be managed.

This report investigates the considerable impacts that these announcements pose for the fishing industry in the South-east Region and the considerable socio-economic implications for individual fishers who fish within the proposed areas, for entire fisheries, and on the overall supply of seafood to the Australian consumer.  On the understanding from the Commonwealth Department of Environment and Heritage
(DEH), that the proposed areas were negotiable, Industry and management agencies believed the most appropriate response was to characterise and validate the impacts and make a scientifically defensible case for alternatives such as boundary changes or alterations to the proposed MPA classifications.  These alternatives were designed to minimise the impacts on the fishing industry while at the same time not eroding the conservation values of the proposed MPA network in the region.

Environment
PROJECT NUMBER • 2005-072
PROJECT STATUS:
COMPLETED

Water use across a catchment and effects on estuarine health and productivity

This research has shown that the profitability of both agriculture on land and aquaculture in the estuary is affected by changing freshwater flows. To assess the value of water to different users across a catchment we developed a generic water accounting framework and populated it with available...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Resource Access And Allocation
Freshwater
Estuarine
Ecosystem
Economic
SPECIES
Pacific Oyster
Environment
PROJECT NUMBER • 2005-029
PROJECT STATUS:
COMPLETED

Seafood CRC: Factors limiting resilience and recovery of fished abalone populations

The aims of this project were to: Determine the efficacy of translocation of mature abalone for stock rebuilding Identify key ecological processes that limit stock recovery Quantify the scale of 'spillover' from translocated populations Cost-benefit analysis of rehabilitated...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Stock Assessment
Social Science
Social Science
Restocking
Reproduction
SPECIES
Blacklip Abalone
Industry

Tasmanian Fisheries and Aquaculture Research and Development Plan 2003-2005

Project number: 2004-313
Project Status:
Completed
Budget expenditure: $20,000.00
Principal Investigator: Colin Buxton
Organisation: University of Tasmania (UTAS)
Project start/end date: 29 Jul 2004 - 10 Jul 2006
Contact:
FRDC
TAGS
Resource Access And Allocation
Recreational Fishing
Food Safety
Fisheries Management
Aquaculture

Need

The 3 Year fisheries and aquaculture R&D plan is needed to:
1. Achieve economic, environmental and social objectives (see 7 above)
2. Enable key stakeholder R&D needs to be addressed.
3. Enable priorities to be identified for targeting limited resources.
4. Enable R&D resources to be aligned to (2) and (3) above.

Objectives

1. To increase economic, environmental and social benefits
2. To achieve sustainable use and management of natural resources
3. To develop and more effectively use human resources and skills
4. Improve effectiveness, efficiency and accountability for expenditure

Final report

ISBN: 978-1-86295-488-5
Author: Colin Buxton
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Final Report • 2009-05-26
2004-313-DLD.pdf
Industry
PROJECT NUMBER • 2004-237
PROJECT STATUS:
COMPLETED

Aquaculture Nutrition Subprogram: assessment of growth performance under limiting environmental conditions

This research has advanced our understanding of how fish growth is influenced by nutrition, by environment and by the interaction between nutritional and environmental factors. When the research started the majority of nutrition research considered the performance of feeds under optimum...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Nutrition
Habitat
Energy
Energy
Biotechnology
Industry

Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: establishment of challenge for AGD

Project number: 2004-215
Project Status:
Completed
Budget expenditure: $652,222.00
Principal Investigator: Barbara Nowak
Organisation: University of Tasmania (UTAS)
Project start/end date: 16 Jun 2004 - 31 Jul 2008
Contact:
FRDC
TAGS
Vaccine
Stock Assessment
Disease
Aquaculture
Animal Health
SPECIES
Atlantic Salmon

Need

Strategic plan
This proposal is part of the FRDC Industry Development Program, Strategy – Aquaculture Development – Production and Production Systems. The project includes a technician and a postdoctoral research fellow (Dr Philip Crosbie) as co-investigator and they will both be provided with suitable professional development opportunities through the Education Program of the Aquafin CRC. Later in the project it may be possible to adopt a PhD student with an independent scholarship or include Honours and Masters projects as they are required and become available. Thus, the project will contribute to the Human Capital Development Program, Leadership and Vocational Development. This proposal includes several key research areas outlined in the Aquatic Animal Health Subprogram Strategic R&D Plan, namely the Nature of disease and host-pathogen interactions and Training and capacity building. Relevant priorities being: to provide improved knowledge of the biology of disease agents (in this case the AGD-causing organism), and an improved knowledge of host responses to disease agents which will be partially addressed by monitoring the specific antibody response to N. pemaquidensis antigens (Nature of disease and host-pathogen interactions). Both the research and service components of this proposal will expand the technical skill base in aquatic animal health and facilitate R&D knowledge transfer (Training and capacity building). This project will underpin other projects that contribute to the Aquafin CRC Health Program Outcomes ie. reduced economic impact of disease (AGD) in finfish (Atlantic salmon) farming.

Need for this research
The continued existence of Atlantic salmon farming in Tasmania is threatened by AGD. Production is expected to increase over the next few years and this will undoubtedly lead to an increase in the incidence of AGD. The AGD control method of freshwater bathing has increased in frequency with the growth in production over the past few years and this trend is expected to continue. This will present a growing cost burden to salmon growers, it is therefore imperative that the impact of AGD on the industry be reduced so as to maintain viability for the future. Multidisciplinary teams have been assembled to achieve this outcome via a number of projects. The projects are complementary and in some cases interdependent where progress in one area is dependent on progress in another area. This is particularly the case with the service component of the current proposal and the vaccine development program, where supply of infective material and a means of controlled testing of candidate vaccines are integral to success. Vaccine development requires identification of specific antigens from the pathogen that will elicit a protective immune response in the host, hence the need for significant quantities of infective material. Similarly, success of the treatment of AGD investigation is dependent on supply of cells for initial screening of a battery of potential therapeutants in vitro before attempting field trials. The research component of the proposal, which is the development of a standard AGD challenge method that can be used in experimental tanks, is essential for the success of these projects. We need to be able to consistently induce AGD in fish to economically appraise alternative treatments and candidate vaccines before moving onto costly field trials. Inducing experimental infections is widely recognised as one of the cornerstones of vaccine development (Nordmo, 1996).

Benefits
The major benefit will be enabling progress in the vaccine development and alternative treatment projects to be made. We will have in place a model to economically appraise novel treatments, experimental vaccines and other less specific means of prophylaxis such as immunomodulation. Ultimately the project will contribute to a collective outcome of lessening the impact of AGD on salmon producers and reducing the estimated 10-20% of production costs that is currently spent controlling the disease. Other benefits include a better understanding of risk factors contributing to AGD, and the opportunity to investigate the virulence mechanisms of the organism. Overall the project will contribute to research output and service. The systematic development and subsequent use of challenge models will yield publishable material. The service aspect will be in the supply of amoebae to collaborators and provision of a means to test novel therapeutants, experimental vaccines and immunomodulatory compounds.

References
Nordmo, R., 1996. Strengths and Weaknesses of Different Challenge Methods. In: Fish Vaccinology (ed. By Gudding, R., Lillehaug, A., Midtlyng, P.J. and Brown, F.) Developments in Biological Standardisation. Basel, Karger p 303-309

Objectives

1. Standardisation of AGD challenge models (research)
2. Use of challenge to appraise trial vaccines developed in the vaccine development project (essential service)
3. Provision of gill-associated and cultured amoebae to collaborators (essential service)
4. Cryopreservation of virulent amoebae (research)
5. Maintenance of infection tank (essential service)
6. Provision of freshwater salmon for experiments in other projects (essential service)

Final report

ISBN: 978-1-86295-460-1
Author: Barbara Nowak
Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Final Report • 2008-10-20 • 1.35 MB
2004-215-DLD.pdf

Summary

This project has increased our knowledge of Amoebic Gill Disease, in particular about the pathogen and the dynamics of infection.  We have described a new species of neoparamoeba, Neoparamoeba perurans, and showed that it has been consistently associated with AGD worldwide.  Stocking density, acclimation to sea water and amoeba batch variability affected AGD infections.  During this project challenge protocols were developed, which have been successfully used and their results correlated well with field challenge.  This project provided crucial support for all AGD research through provision of amoebae and salmon for all AGD projects and running experimental challenges for trial vaccines.

The main objectives of this project were to provide essential service for AGD research.  During this project we standardised existing AGD challenge protocol and developed a new in vivo gill attachment challenge assay.  Both challenge protocols have been successfully applied in AGD research.  Research on virulent amoebae resulted in a description of a new species, which consequently has been shown to be involved in all AGD cases worldwide.  This discovery led to the development of new diagnostic tests, which are now available for confirmation of AGD infections and further research.

In conclusion, this project has not only provided essential support for all AGD research by supplying amoebae and salmon and running AGD challenges for the experimental vaccines, but also increased our knowledge and understanding of AGD.

Keywords: Amoebic Gill Disease, salmon, aquaculture.

Environment
PROJECT NUMBER • 2004-214
PROJECT STATUS:
COMPLETED

Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: effects of husbandry on AGD

Before this project our knowledge of the effects of husbandry on Amoebic Gill Disease (AGD) was limited. This project allowed on-farm assessment of effects of husbandry procedures and stock characteristics on AGD severity. Furthermore, we investigated the potential to re-use fresh water for...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Vaccine
Stock Assessment
Husbandry
Freshwater
Disease
SPECIES
Atlantic Salmon

Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: commercial AGD and salmon health project

Project number: 2004-213
Project Status:
Completed
Budget expenditure: $499,671.00
Principal Investigator: Mark Powell
Organisation: University of Tasmania (UTAS)
Project start/end date: 29 Jun 2004 - 1 Sep 2007
Contact:
FRDC
TAGS
Stock Assessment
Post Harvest
Nutrition
Husbandry
Freshwater
SPECIES
Atlantic Salmon

Need

There is an urgent need to develop and commercialise treatments for the control of amoebic gill disease in the Atlantic salmon aquaculture industry in Tasmania. The cost-benefit analysis undertaken by the Aquafin CRC suggested a net present value of economic benefit of $21.6M AUD and a benefit/cost ratio of 5.3. The need for short term (even interim) solutions for the control of AGD is paramount.

This project complements and continues the advances made by previous research (FRDC 2000/266 and 2001/205) that identified potential treatments. The current project will investigate commercial feasibility of treatments previously identified while providing an opportunity for examining new potential AGD treatments at the behest of the salmon aquaculture industry. Industry representatives, in a recent meeting, (January 15, 2004 Marine Research Laboratories, Taroona TAS) iterated the need for a flexible program that would allow potential treatments and control measures to be tested in the laboratory as well as in the field. This proposal (with budgetary constraints) has been developed to provide that flexibility with clearly identified treatments that will be investigated in the first instance. The road to commercialisation of any disease control treatment is a long and complex one, this project is designed to provide the information that may lead to a change of commercial practice in the control of AGD.

A program for the development and commercialisation of disease treatments is grounded in the identification of potential treatments that are tested both in vitro and in vivo in the laboratory. Once suitable laboratory testing is complete, then small-scale field trials are required and finally the scaling up of trials for commercialisation. A program for treatment develop must operate over a minimum of a 3 year funding cycle to maximise the likelihood of success maximising the productivity and contributions of all staff (Research leaders, technicians, post-doctoral fellows and graduate students). Through this approach, the outcomes of the research can be achieved, providing tangible solutions for industry, the acquisition of knowledge and intellectual property for the CRC and the training of quality personnel (Post-docs and PhD students).

Objectives

1. To undertake commercial scale investigations into the potential use of seawater bath treatments (eg chloramine-T, artificially softened freshwater or hydrogen peroxide) as a strategy for AGD control.
2. To investigate the efficacy of in feed treatments such as:Parasiticides (eg, bithionol)Nutritional supplements (eg AquaciteTM and betabecTM)Mucolytic agents (eg L cysteine ethyl ester)
3. To test new and novel anti-parasitic compounds for potential use in bath or in-feed treatments for AGD.

Final report

ISBN: 978-1-86295-378-9
Author: Mark Powell
Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

Final Report • 2009-04-29
2004-213-DLD.pdf

Summary

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T.  This project has since tested a number of amoebicides using a progressive approach of in vitro toxicity, in vivo efficacy in the laboratory through to in vivo efficacy under field conditions in either semi-commercial or under full commercialised field trials. 

Although the practical delivery of some of these as treatments of amoebic gill disease (AGD), such as chloramine-T bathing, appear not to be practicable, other avenues may have potential for further commercial development, such as the dietary inclusion of potential amoebicidal compounds, including bithionol and ionophore-based amoebicides.  The project has explored the potential of bithionol, a registered amoebicidal drug, as an in-feed treatment, showing that AGD severity can be reduced by approximately 50%.  Similarly, the project has examined the efficacy of an immunostimulant-based feed additive, Aquacite and Betabec which reduced mortality in Atlantic salmon with AGD but did not affect the intensity of infection.

This project has further characterised the effects of gill disease, in particular AGD, with respect to the metabolic cost of disease to the fish.  This work has estimated that in excess of 17%  of the ingested energy is likely to go to service the cost of AGD.  This approach provides a useful tool to incorporate into bioeconomic models for assessing the efficacy of AGD treatments in the future.

Keywords:  Amoebic gill disease, Atlantic salmon, disease treatment.

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