39 results

Potential pharmaceutical products from Australian beche-de-mer

Project number: 1992-125.22
Project Status:
Completed
Budget expenditure: $30,000.00
Principal Investigator: Craig Davis
Organisation: University of Queensland (UQ)
Project start/end date: 5 Dec 1994 - 20 Oct 1998
Contact:
FRDC
TAGS
Pharmaceutics
Disease
Biotechnology
SPECIES
Sea Cucumbers

Objectives

1. To evaluate the levels of theraputic activity in different species of Beche-de-Mer to identify the richest sources for these potential pharmaceuticals.
2. To improve the extraction and purification protocols to facilitate fractionation of Beche-de-mer species.
3. To examine different methods of post catch handling to preserve the therapeutic activities.
4. To test these stabilised fractions for therapeutic activities in animal models commonly used to trial drugs for human use.

Final report

Authors: David Fairlie Craig Davis and Michael Whitehouse
Final Report • 1995-12-31 • 2.46 MB
1992-125.22-DLD.pdf

Summary

This final report details all work conducted under a 5 month pilot study funded by a small grant from the National Seafood Centre in December 1994. During this time we (i) collected and/or prepared dry powders from species of eviscerated holothurians; and (ii) evaluated extracts of the powdered specimens for anti-inflammatory, anti-ulcer and hypotensive activities in rats.

Development of cost effective diets for prawn grow-out using local ingredients

Project number: 1990-067
Project Status:
Completed
Budget expenditure: $447,061.66
Principal Investigator: Paul J. Palmer
Organisation: University of Queensland (UQ)
Project start/end date: 28 Jun 1991 - 30 Jun 1994
Contact:
FRDC

Objectives

1. Development least-cost diet formulations for prawn grow-out from local ingredients, with particular emphasis on protein sources.
2. To maximise the efficiency with which protein is used with emphasis on amino acid requirements and energy balance in the diet
3. To develop practical feeding systems which ensure efficient use of feed

Final report

Final Report • 2017-09-29 • 10.33 MB
1990-067-DLD.pdf
Final Report • 2017-09-29 • 10.33 MB
1990-067-DLD.pdf
Final Report • 2017-09-29 • 10.33 MB
1990-067-DLD.pdf

Microencapsulation techniques for prawn feed formulation

Project number: 1990-065
Project Status:
Completed
Budget expenditure: $114,469.00
Principal Investigator: John Litster
Organisation: University of Queensland (UQ)
Project start/end date: 29 Jun 1990 - 30 Jun 1995
Contact:
FRDC

Objectives

1. Develop techniques to encapsulate soluble nutrients for inclusion in feed pellets for adult prawns.
2. Develop new or improve existing techniques for encapsulating artificial whole diets for prawn larvae
3. Test the effectiveness of the technique by feding trials for both adult prawns and prawn larvae
4. Encourage local feed manufacturers to use the techniques in the development of prawn feed for the local industry and for export

Final report

Final Report • 2011-08-01 • 3.05 MB
1990-065-DLD.pdf
Final Report • 2011-08-01 • 3.05 MB
1990-065-DLD.pdf
Final Report • 2011-08-01 • 3.05 MB
1990-065-DLD.pdf

Pathogenic viruses of cultured prawns

Project number: 1989-077
Project Status:
Completed
Budget expenditure: $125,538.00
Principal Investigator: Bob J. Lester
Organisation: University of Queensland (UQ)
Project start/end date: 28 Jun 1990 - 31 Dec 1992
Contact:
FRDC

Objectives

1. Differentiate the species and strains of baculovirus found in Australian penaeids

Final report

Author: Dr R.J.G. Lester
Final Report • 2017-09-29 • 1.18 MB
1989-077-DLD.pdf
Final Report • 2017-09-29 • 1.18 MB
1989-077-DLD.pdf
Final Report • 2017-09-29 • 1.18 MB
1989-077-DLD.pdf

Parasites as indicators of orange roughy biology

Project number: 1988-025
Project Status:
Completed
Budget expenditure: $64,435.00
Principal Investigator: Bob J. Lester
Organisation: University of Queensland (UQ)
Project start/end date: 28 Jun 1990 - 31 Dec 1991
Contact:
FRDC
TAGS
Stock Assessment
Reproduction
Migration
Distribution
Disease

Objectives

1. Determine, using parasites, whether spawning fish are drawn from a wide area or whether aggregations are of fish from only the immediate locality.
2. Look for parasitological evidence of long term migration or general fish movement as fish increase in size.

Final report

Final Report • 2017-09-29 • 187.94 KB
1988-025-DLD.pdf
Final Report • 2017-09-29 • 187.94 KB
1988-025-DLD.pdf
Final Report • 2017-09-29 • 187.94 KB
1988-025-DLD.pdf

Diseases of abalone

Project number: 1987-009
Project Status:
Completed
Budget expenditure: $35,866.00
Principal Investigator: Bob J. Lester
Organisation: University of Queensland (UQ)
Project start/end date: 28 Jun 1990 - 31 Dec 1990
Contact:
FRDC
TAGS
Restocking
Distribution
Disease
Animal Health

Objectives

1. Monitor die-back & spread of protozoan parasite Perkinsus.
2. Determine range of hosts
check other mollusc spp. What predisposes abalone to infection & to die?
3. Investigate seeding clean abalone in depleted areas. Predictive research.

Final report

Author: Dr R.J.G. Lester
Final Report • 1990-12-31 • 1.71 MB
1987-009-DLD.pdf

Summary

In 1985 and 1986 many greenlip abalone Haliotis laevigata near Edithburg in the St Vincent Gulf died. The protozoan parasite, Perkinsus olseni, was suspected to be the cause. We showed that Perkinsus olseni was seasonally abundant in greenlip from the edge of the die-back area. It was also common in three other species of abalone, H. rubra, H. cyclobates and H. scalaris, and was recovered from 4 species of bivalves from the same area (Barbatia pistachio, Chlamys bifrons, Katylesia rhytiphora and Pinna bicolor).

In July 1987, 140 healthy abalone were transplanted from Hardwicke Bay to Stansbury at the centre of the die-off in an attempt to recolonize the area. This was done with the help of commercial abalone divers. In the following October, a subsample indicated the transplants were uninfected and were growing well. However, by March 1998, many of the abalone had recently died and the remainder were heavily infected.

In July 1989, 195 greenlip from Tipara Reef were tagged and transplanted to the same site. A subsample the following March indicated that there was good growth, very little infection, and no sign of recent deaths. The epizootic had evidently passed and these abalone were successfully recolonising the area. However, a follow-up sample a year later - in April, 1992 - indicated that many of the animals had become infected though there was no sign of recent deaths.

The die-back area is near the northern limit for greenlip abalone in the Gulf of St Vincent. Laboratory experiments showed that abalone infected with Perkinsus died more frequently than uninfected abalone and that stress such as high temperature may predispose the abalone to disease. The time of the original die-back corresponded to warm winters on the Yorke Peninsula.

Laboratory and field observations suggest that the parasite is common in greenlip in late summer. During winter abalone are able to contain and eliminate the infection. We conclude that the parasite is widespread around the Yorke Peninsula in hosts other than greenlip, and that greenlip near the upper limit of their temperature range are likely to contract fatal infections.

Final Report • 1990-12-31 • 1.71 MB
1987-009-DLD.pdf

Summary

In 1985 and 1986 many greenlip abalone Haliotis laevigata near Edithburg in the St Vincent Gulf died. The protozoan parasite, Perkinsus olseni, was suspected to be the cause. We showed that Perkinsus olseni was seasonally abundant in greenlip from the edge of the die-back area. It was also common in three other species of abalone, H. rubra, H. cyclobates and H. scalaris, and was recovered from 4 species of bivalves from the same area (Barbatia pistachio, Chlamys bifrons, Katylesia rhytiphora and Pinna bicolor).

In July 1987, 140 healthy abalone were transplanted from Hardwicke Bay to Stansbury at the centre of the die-off in an attempt to recolonize the area. This was done with the help of commercial abalone divers. In the following October, a subsample indicated the transplants were uninfected and were growing well. However, by March 1998, many of the abalone had recently died and the remainder were heavily infected.

In July 1989, 195 greenlip from Tipara Reef were tagged and transplanted to the same site. A subsample the following March indicated that there was good growth, very little infection, and no sign of recent deaths. The epizootic had evidently passed and these abalone were successfully recolonising the area. However, a follow-up sample a year later - in April, 1992 - indicated that many of the animals had become infected though there was no sign of recent deaths.

The die-back area is near the northern limit for greenlip abalone in the Gulf of St Vincent. Laboratory experiments showed that abalone infected with Perkinsus died more frequently than uninfected abalone and that stress such as high temperature may predispose the abalone to disease. The time of the original die-back corresponded to warm winters on the Yorke Peninsula.

Laboratory and field observations suggest that the parasite is common in greenlip in late summer. During winter abalone are able to contain and eliminate the infection. We conclude that the parasite is widespread around the Yorke Peninsula in hosts other than greenlip, and that greenlip near the upper limit of their temperature range are likely to contract fatal infections.

Final Report • 1990-12-31 • 1.71 MB
1987-009-DLD.pdf

Summary

In 1985 and 1986 many greenlip abalone Haliotis laevigata near Edithburg in the St Vincent Gulf died. The protozoan parasite, Perkinsus olseni, was suspected to be the cause. We showed that Perkinsus olseni was seasonally abundant in greenlip from the edge of the die-back area. It was also common in three other species of abalone, H. rubra, H. cyclobates and H. scalaris, and was recovered from 4 species of bivalves from the same area (Barbatia pistachio, Chlamys bifrons, Katylesia rhytiphora and Pinna bicolor).

In July 1987, 140 healthy abalone were transplanted from Hardwicke Bay to Stansbury at the centre of the die-off in an attempt to recolonize the area. This was done with the help of commercial abalone divers. In the following October, a subsample indicated the transplants were uninfected and were growing well. However, by March 1998, many of the abalone had recently died and the remainder were heavily infected.

In July 1989, 195 greenlip from Tipara Reef were tagged and transplanted to the same site. A subsample the following March indicated that there was good growth, very little infection, and no sign of recent deaths. The epizootic had evidently passed and these abalone were successfully recolonising the area. However, a follow-up sample a year later - in April, 1992 - indicated that many of the animals had become infected though there was no sign of recent deaths.

The die-back area is near the northern limit for greenlip abalone in the Gulf of St Vincent. Laboratory experiments showed that abalone infected with Perkinsus died more frequently than uninfected abalone and that stress such as high temperature may predispose the abalone to disease. The time of the original die-back corresponded to warm winters on the Yorke Peninsula.

Laboratory and field observations suggest that the parasite is common in greenlip in late summer. During winter abalone are able to contain and eliminate the infection. We conclude that the parasite is widespread around the Yorke Peninsula in hosts other than greenlip, and that greenlip near the upper limit of their temperature range are likely to contract fatal infections.

Diseases of prawns in aquaculture: to develop procedures to detect pathogens of prawns shipped interstate

Project number: 1986-096
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Bob J. Lester
Organisation: University of Queensland (UQ)
Project start/end date: 1 Jul 1994 - 4 Jul 1994
Contact:
FRDC
TAGS
Disease
Diagnostic
Aquaculture
Animal Health

Objectives

1. Screen trans-shipped prawns to protect prawn farms from virulent pathogens.
2. Add/delete pathogens from list compiled from previous research at University of Qld and from review of overseas literature, & as disease status of Aust prawns becomes known

Final report

Author: Dr R.J.G. Lester
Final Report • 1994-11-30 • 140.27 KB
1986-096-DLD.pdf

Summary

This project found and described a baculovirus similar to Monodon Baculovirus (MBV) that was called Plebejus Baculovirus (PBV) as it was in eastern king prawns (Penaeus plebejus). It later found it in Australian cultured Penaeus monodon.

The project investigated other conditions, particularly Hepatopancreatic Parvolike Virus (HPV) and Shann Bodies. Results were published in the scientific literature and presented at industry meetings. It was recommended that prawns be screened for the known virus infections in Australian prawns by subsamples of 25 prawns examined in H. and E. sections without stressing prawns for viral enhancement. Prawns were screened to be moved interstate for the governments of Queensland, New South Wales, Victoria, Western Australia and the Northern Territory, and many examinations were carried out for individual prawn farmers. 4 papers and 7 reviews on prawn diseases were published.

Final Report • 1994-11-30 • 140.27 KB
1986-096-DLD.pdf

Summary

This project found and described a baculovirus similar to Monodon Baculovirus (MBV) that was called Plebejus Baculovirus (PBV) as it was in eastern king prawns (Penaeus plebejus). It later found it in Australian cultured Penaeus monodon.

The project investigated other conditions, particularly Hepatopancreatic Parvolike Virus (HPV) and Shann Bodies. Results were published in the scientific literature and presented at industry meetings. It was recommended that prawns be screened for the known virus infections in Australian prawns by subsamples of 25 prawns examined in H. and E. sections without stressing prawns for viral enhancement. Prawns were screened to be moved interstate for the governments of Queensland, New South Wales, Victoria, Western Australia and the Northern Territory, and many examinations were carried out for individual prawn farmers. 4 papers and 7 reviews on prawn diseases were published.

Final Report • 1994-11-30 • 140.27 KB
1986-096-DLD.pdf

Summary

This project found and described a baculovirus similar to Monodon Baculovirus (MBV) that was called Plebejus Baculovirus (PBV) as it was in eastern king prawns (Penaeus plebejus). It later found it in Australian cultured Penaeus monodon.

The project investigated other conditions, particularly Hepatopancreatic Parvolike Virus (HPV) and Shann Bodies. Results were published in the scientific literature and presented at industry meetings. It was recommended that prawns be screened for the known virus infections in Australian prawns by subsamples of 25 prawns examined in H. and E. sections without stressing prawns for viral enhancement. Prawns were screened to be moved interstate for the governments of Queensland, New South Wales, Victoria, Western Australia and the Northern Territory, and many examinations were carried out for individual prawn farmers. 4 papers and 7 reviews on prawn diseases were published.

Seasonal and moult-induced muscle atrophy in the spanner crab, Ranina ranina

Project number: 1985-036
Project Status:
Completed
Budget expenditure: $0.00
Organisation: University of Queensland (UQ)
Project start/end date: 27 Jun 1986 - 29 Jun 1986
Contact:
FRDC

Objectives

1. Quantify muscle atrophy in field sampled & aquarium held crabs on seasonal & moult cycle basis.
2. Develop predictive relationships to anticipate reduced muscle mass.
3. Develop method whereby moult stages of captured crabs could be recognised rapidly & accurately

Identification of deep water trawl fish stocks using parasites as markers

Project number: 1984-027
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Bob J. Lester
Organisation: University of Queensland (UQ)
Project start/end date: 28 Dec 1987 - 31 Dec 1987
Contact:
FRDC
TAGS
Stock Assessment
Reproduction
Fisheries Management
Distribution
Disease

Objectives

1. Determine whether orange roughy, blue grenadier and gemfish constitute single stocks within the south-eastern Australian trawl fishery,
2. or whether each species consists of two or more essentially discrete stocks

Final report

Author: R.J.G. Lester
Final Report • 1987-12-31 • 3.59 MB
1984-027-DLD.pdf

Summary

Orange roughy are a relatively sedentary species with little movement between fish management zones. This is the conclusion of our analysis of the numbers of parasites in the gut wall of 1251 orange roughy Hoplostethus atlanticus from eight areas off southern Australia and three areas off New Zealand.

Two manuscripts were submitted for publication: Stock discrimination of orange roughy Hoplostethus atlanticus by parasite analysis by R.J.G. Lester, K.B. Sewell, A. Barnes and K. Evans, and The numbers of selected parasites in Australian and New Zealand samples of orange roughy Hoplostethus atlanticus, 1983 to 1986, by K.B. Sewell and R.J.G. Lester

Project products

Report • 1.57 MB
1984-027-Supplementary report.pdf

Summary

The numbers of selected parasite species from 23 samples of gemfish, Rexea solandri, from seven locations off southern Australia are given. The data were examined for evidence of isolated gemfish populations. Canonical multivariate analyses of the numbers of larval nematodes (Anisakis spp. and Terranova sp.), larval cestodes (Hepatoxylon trichiurid and Nybelinia sp.), acanthocephalans (Rhadinorhynchus sp. and Corynosoma sp.), and a hemiuroid digenean from a total of763 gemfish showed that the parasite faunas of fish from eastern Australia were similar except for a sample taken off New South Wales at the end of the spawning season whose affinities are unknown.

Fish from South Australia had similar parasite faunas to those collected from eastern Australia suggesting the eastern and western Bass Strait fish belong to the same stock. Samples collected from the Great Australian Bight were distinct from the southern and eastern fish. Differences in parasite fauna were detected between samples taken within the spawning season and those taken from the same locations outside the spawning season, presumably a result of the spawning migration.

Final Report • 1987-12-31 • 3.59 MB
1984-027-DLD.pdf

Summary

Orange roughy are a relatively sedentary species with little movement between fish management zones. This is the conclusion of our analysis of the numbers of parasites in the gut wall of 1251 orange roughy Hoplostethus atlanticus from eight areas off southern Australia and three areas off New Zealand.

Two manuscripts were submitted for publication: Stock discrimination of orange roughy Hoplostethus atlanticus by parasite analysis by R.J.G. Lester, K.B. Sewell, A. Barnes and K. Evans, and The numbers of selected parasites in Australian and New Zealand samples of orange roughy Hoplostethus atlanticus, 1983 to 1986, by K.B. Sewell and R.J.G. Lester

Report • 1.57 MB
1984-027-Supplementary report.pdf

Summary

The numbers of selected parasite species from 23 samples of gemfish, Rexea solandri, from seven locations off southern Australia are given. The data were examined for evidence of isolated gemfish populations. Canonical multivariate analyses of the numbers of larval nematodes (Anisakis spp. and Terranova sp.), larval cestodes (Hepatoxylon trichiurid and Nybelinia sp.), acanthocephalans (Rhadinorhynchus sp. and Corynosoma sp.), and a hemiuroid digenean from a total of763 gemfish showed that the parasite faunas of fish from eastern Australia were similar except for a sample taken off New South Wales at the end of the spawning season whose affinities are unknown.

Fish from South Australia had similar parasite faunas to those collected from eastern Australia suggesting the eastern and western Bass Strait fish belong to the same stock. Samples collected from the Great Australian Bight were distinct from the southern and eastern fish. Differences in parasite fauna were detected between samples taken within the spawning season and those taken from the same locations outside the spawning season, presumably a result of the spawning migration.

Final Report • 1987-12-31 • 3.59 MB
1984-027-DLD.pdf

Summary

Orange roughy are a relatively sedentary species with little movement between fish management zones. This is the conclusion of our analysis of the numbers of parasites in the gut wall of 1251 orange roughy Hoplostethus atlanticus from eight areas off southern Australia and three areas off New Zealand.

Two manuscripts were submitted for publication: Stock discrimination of orange roughy Hoplostethus atlanticus by parasite analysis by R.J.G. Lester, K.B. Sewell, A. Barnes and K. Evans, and The numbers of selected parasites in Australian and New Zealand samples of orange roughy Hoplostethus atlanticus, 1983 to 1986, by K.B. Sewell and R.J.G. Lester

Report • 1.57 MB
1984-027-Supplementary report.pdf

Summary

The numbers of selected parasite species from 23 samples of gemfish, Rexea solandri, from seven locations off southern Australia are given. The data were examined for evidence of isolated gemfish populations. Canonical multivariate analyses of the numbers of larval nematodes (Anisakis spp. and Terranova sp.), larval cestodes (Hepatoxylon trichiurid and Nybelinia sp.), acanthocephalans (Rhadinorhynchus sp. and Corynosoma sp.), and a hemiuroid digenean from a total of763 gemfish showed that the parasite faunas of fish from eastern Australia were similar except for a sample taken off New South Wales at the end of the spawning season whose affinities are unknown.

Fish from South Australia had similar parasite faunas to those collected from eastern Australia suggesting the eastern and western Bass Strait fish belong to the same stock. Samples collected from the Great Australian Bight were distinct from the southern and eastern fish. Differences in parasite fauna were detected between samples taken within the spawning season and those taken from the same locations outside the spawning season, presumably a result of the spawning migration.

Taxonomy and ecology of Vibrionaceae associated with red spot disease of Queensland aestuarine fish

Project number: 1984-026
Project Status:
Completed
Budget expenditure: $0.00
Organisation: University of Queensland (UQ)
Project start/end date: 28 Dec 1986 - 31 Dec 1986
Contact:
FRDC
TAGS
Mortality
Estuarine
Disease
Animal Health

Objectives

1. Confirm involvement of Vibrio anguillarum or a related species in red spot disease in Qld commercial estuarine fish.
2. Clarify classification & methods for identification of the pathogen. Determine means of dispersal & role of host stress.
3. Develop strategy to minimise losses

Final report

Final Report • 9.39 MB
1984-026-DLD.pdf

Project products

Article • 131.58 KB
1984-026 Reanalysis of 5S rRNA Sequence Data for the Vibrionaceae with the Clustan Program Suite.pdf
Article • 79.16 KB
1984-026 Ecological significance of siderophore production in marine bacteria.pdf
Final Report • 9.39 MB
1984-026-DLD.pdf
Article • 131.58 KB
1984-026 Reanalysis of 5S rRNA Sequence Data for the Vibrionaceae with the Clustan Program Suite.pdf
Article • 79.16 KB
1984-026 Ecological significance of siderophore production in marine bacteria.pdf
Final Report • 9.39 MB
1984-026-DLD.pdf
Article • 131.58 KB
1984-026 Reanalysis of 5S rRNA Sequence Data for the Vibrionaceae with the Clustan Program Suite.pdf
Article • 79.16 KB
1984-026 Ecological significance of siderophore production in marine bacteria.pdf
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