42,973 results
Environment
PROJECT NUMBER • 2005-076
PROJECT STATUS:
COMPLETED

QX resistant oyster challenge trial 2005 - 2006

The Hawkesbury River is located approximately 50 km north of Sydney NSW. In 2003, the Hawkesbury River was the third largest Sydney rock oyster Saccostrea glomerata (SRO) producing estuary in NSW, with an annual farm gate production of $3.6M (10.1 million oysters). The commercial production of SRO...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
TAGS
Survey
Reproduction
Population Dynamics
Life History
Husbandry
Environment
PROJECT NUMBER • 1990-004
PROJECT STATUS:
COMPLETED

Pilot evaluation of methodology for assessment of the eastern king prawn fishery

The fishery for eastern king prawns is based on a major penaeid prawn resource shared between New South Wales and Queensland. Because the species is migratory and the resource shared between two states, the fishery offers some unique research and management challenges. The objectives of this...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
PROJECT NUMBER • 2015-025
PROJECT STATUS:
COMPLETED

Patterns of interaction between habitat and oceanographic variables affecting the connectivity and productivity of invertebrate fisheries

A better understanding of the links between benthic habitat, oceanography, and fisheries productivity is a major priority of the Blacklip Abalone, Haliotis rubra, and Southern Rock Lobster, Jasus edwardsii, industries to improve sustainable management of these important natural resources. This...
ORGANISATION:
Deakin University Geelong Waterfront Campus
TAGS
Survey
Resource Enhancement
Reproduction
Rac Vic
Population Dynamics
SPECIES
Southern Rock Lobster
Blacklip Abalone

The impact of changes in fishing patterns on red-legged banana prawns (Penaeus indicus) in the Joseph Bonaparte Gulf

Project number: 1995-016
Project Status:
Completed
Budget expenditure: $85,164.00
Principal Investigator: Neil Loneragan
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 28 Jun 1995 - 30 Jun 1997
Contact:
FRDC
TAGS
Stock Assessment
Resource Access And Allocation
Fishing Effort
Fisheries Management
Economic

Objectives

1. To contribute to maximise the economic yield of the red-legged banana prawn fishery in the Joseph Bonaparte Gulf by:
2. developing a model incorporating growth mortality and value at size parameters that can evaluate, under different fishing patterns, the economic returns to the fishery
3. evaluating the effects of different fishing patterns on the spawning capacity of the stock

Final report

Author: Neil Loneragan and David Die
Final Report • 1997-03-11 • 1.09 MB
1995-016-DLD.pdf

Summary

The fishery for red-legged banana prawns in the Joseph Bonaparte Gulf (JBG) developed in the early 1980s. Since then, fishing effort has varied from 700 to 2600 boat-days per year and catches range from 200 to 1000 tonnes per year. Initially the JBG fishery developed as an alternative to fishing in the Gulf of Carpentaria: during years of poor catches in the Gulf of Carpentaria, more fishing effort was applied in the JBG. In the early years most effort was concentrated at the end of the year. In recent years, however, in addition to being more heavily fished in years of poor catches elsewhere, JBG stocks are fished earlier in the season by a consistent number of boats, regardless of catches elsewhere in the NPF.
 
Although the red-legged banana prawn has been fished in the JBG since the early 1980s, we know little of its biology or population dynamics. Apart from a 12-month study by Northern Territory (NT) Fisheries in 1990, there has been no research on this species in Australia. The NT findings suggested that growth and mortality rates - important parameters for estimating the effects of changes in fishing effort on stocks - could not be estimated precisely by length frequency analysis of data from commercial catches. There was a need to develop a preliminary model for the red-­legged banana prawn fishery in the JBG. This model would help to evaluate the impacts of changes in the pattern of fishing effort on the yield and spawning biomass of red-legged banana prawns. However, the estimates of growth and mortality used by the model would, unfortunately, be imprecise.
 
Therefore, a well-designed tag/release study would significantly improve the reliability of our estimates of growth and mortality for red-legged banana prawns in the JBG. However, prior to conducting a large-scale field tagging trial, the effect of tagging on the growth and mortality of red-legged banana prawns needed to be studied. For tag/release experiments to be successful, tagging should not affect the growth and survival of the prawns. An effective release-cage also needed to be designed for the deep waters of the JBG.
Final Report • 1997-03-11 • 1.09 MB
1995-016-DLD.pdf

Summary

The fishery for red-legged banana prawns in the Joseph Bonaparte Gulf (JBG) developed in the early 1980s. Since then, fishing effort has varied from 700 to 2600 boat-days per year and catches range from 200 to 1000 tonnes per year. Initially the JBG fishery developed as an alternative to fishing in the Gulf of Carpentaria: during years of poor catches in the Gulf of Carpentaria, more fishing effort was applied in the JBG. In the early years most effort was concentrated at the end of the year. In recent years, however, in addition to being more heavily fished in years of poor catches elsewhere, JBG stocks are fished earlier in the season by a consistent number of boats, regardless of catches elsewhere in the NPF.
 
Although the red-legged banana prawn has been fished in the JBG since the early 1980s, we know little of its biology or population dynamics. Apart from a 12-month study by Northern Territory (NT) Fisheries in 1990, there has been no research on this species in Australia. The NT findings suggested that growth and mortality rates - important parameters for estimating the effects of changes in fishing effort on stocks - could not be estimated precisely by length frequency analysis of data from commercial catches. There was a need to develop a preliminary model for the red-­legged banana prawn fishery in the JBG. This model would help to evaluate the impacts of changes in the pattern of fishing effort on the yield and spawning biomass of red-legged banana prawns. However, the estimates of growth and mortality used by the model would, unfortunately, be imprecise.
 
Therefore, a well-designed tag/release study would significantly improve the reliability of our estimates of growth and mortality for red-legged banana prawns in the JBG. However, prior to conducting a large-scale field tagging trial, the effect of tagging on the growth and mortality of red-legged banana prawns needed to be studied. For tag/release experiments to be successful, tagging should not affect the growth and survival of the prawns. An effective release-cage also needed to be designed for the deep waters of the JBG.
Final Report • 1997-03-11 • 1.09 MB
1995-016-DLD.pdf

Summary

The fishery for red-legged banana prawns in the Joseph Bonaparte Gulf (JBG) developed in the early 1980s. Since then, fishing effort has varied from 700 to 2600 boat-days per year and catches range from 200 to 1000 tonnes per year. Initially the JBG fishery developed as an alternative to fishing in the Gulf of Carpentaria: during years of poor catches in the Gulf of Carpentaria, more fishing effort was applied in the JBG. In the early years most effort was concentrated at the end of the year. In recent years, however, in addition to being more heavily fished in years of poor catches elsewhere, JBG stocks are fished earlier in the season by a consistent number of boats, regardless of catches elsewhere in the NPF.
 
Although the red-legged banana prawn has been fished in the JBG since the early 1980s, we know little of its biology or population dynamics. Apart from a 12-month study by Northern Territory (NT) Fisheries in 1990, there has been no research on this species in Australia. The NT findings suggested that growth and mortality rates - important parameters for estimating the effects of changes in fishing effort on stocks - could not be estimated precisely by length frequency analysis of data from commercial catches. There was a need to develop a preliminary model for the red-­legged banana prawn fishery in the JBG. This model would help to evaluate the impacts of changes in the pattern of fishing effort on the yield and spawning biomass of red-legged banana prawns. However, the estimates of growth and mortality used by the model would, unfortunately, be imprecise.
 
Therefore, a well-designed tag/release study would significantly improve the reliability of our estimates of growth and mortality for red-legged banana prawns in the JBG. However, prior to conducting a large-scale field tagging trial, the effect of tagging on the growth and mortality of red-legged banana prawns needed to be studied. For tag/release experiments to be successful, tagging should not affect the growth and survival of the prawns. An effective release-cage also needed to be designed for the deep waters of the JBG.
Final Report • 1997-03-11 • 1.09 MB
1995-016-DLD.pdf

Summary

The fishery for red-legged banana prawns in the Joseph Bonaparte Gulf (JBG) developed in the early 1980s. Since then, fishing effort has varied from 700 to 2600 boat-days per year and catches range from 200 to 1000 tonnes per year. Initially the JBG fishery developed as an alternative to fishing in the Gulf of Carpentaria: during years of poor catches in the Gulf of Carpentaria, more fishing effort was applied in the JBG. In the early years most effort was concentrated at the end of the year. In recent years, however, in addition to being more heavily fished in years of poor catches elsewhere, JBG stocks are fished earlier in the season by a consistent number of boats, regardless of catches elsewhere in the NPF.
 
Although the red-legged banana prawn has been fished in the JBG since the early 1980s, we know little of its biology or population dynamics. Apart from a 12-month study by Northern Territory (NT) Fisheries in 1990, there has been no research on this species in Australia. The NT findings suggested that growth and mortality rates - important parameters for estimating the effects of changes in fishing effort on stocks - could not be estimated precisely by length frequency analysis of data from commercial catches. There was a need to develop a preliminary model for the red-­legged banana prawn fishery in the JBG. This model would help to evaluate the impacts of changes in the pattern of fishing effort on the yield and spawning biomass of red-legged banana prawns. However, the estimates of growth and mortality used by the model would, unfortunately, be imprecise.
 
Therefore, a well-designed tag/release study would significantly improve the reliability of our estimates of growth and mortality for red-legged banana prawns in the JBG. However, prior to conducting a large-scale field tagging trial, the effect of tagging on the growth and mortality of red-legged banana prawns needed to be studied. For tag/release experiments to be successful, tagging should not affect the growth and survival of the prawns. An effective release-cage also needed to be designed for the deep waters of the JBG.
Environment
PROJECT NUMBER • 1989-013
PROJECT STATUS:
COMPLETED

Causes of decline in stocks of commercially important prawns in the Northern Prawn Fishery

The following report is a description of the two FIRTA projects (85/85 & 89/13) which examined recruitment processes in penaeids at Albatross Bay in the northeastern Gulf of Carpentaria over the years 1985 to 1992. The aim of the first of the two projects was to identify the main factors which...
ORGANISATION:
CSIRO Oceans and Atmosphere Cleveland
Industry
PROJECT NUMBER • 1996-347
PROJECT STATUS:
COMPLETED

Identification of a Y-chromosome marker in Atlantic salmon (extension to FRDC 95/80)

The aquaculture of Atlantic salmon began in Australia in the mid-1960' s with an importation of ova from Canada to New South Wales. Anecdotal evidence suggested that the Australian population went through a severe bottleneck event during the early years due to poor survival and subsequent small...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Biotechnology
Aquaculture
Analytics
Environment
PROJECT NUMBER • 2004-024
PROJECT STATUS:
COMPLETED

Variation in banana prawn catches at Weipa: a comprehensive regional study

Since about the year 2000 there have been very low catches in the Weipa Region of the Northern Prawn Fishery (NPF); these low catches were different to other areas of the NPF where they continued to fluctuate around long-term means and continued to fall within predicted levels. Industry and managers...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Workforce
Wild Catch
Survey
Stock Assessment
Reproduction
SPECIES
Banana Prawns
Industry
PROJECT NUMBER • 2016-142
PROJECT STATUS:
COMPLETED

Genetic diversity audit of farm held stocks of Greenlip and Blacklip abalone

Following the AVG virus, the number of broodstock that were available to produce hybrids was drastically reduced. This project was undertaken in order to ascertain the genetic diversity present within farm held broodstock of greenlip and blacklip abalone and to determine the degree of genetic...
ORGANISATION:
James Cook University (JCU)
SPECIES
Blacklip Abalone
Greenlip Abalone
People
PROJECT NUMBER • 2005-307
PROJECT STATUS:
COMPLETED

International symposium on cephalopod lifecycles: biology, management and conservation

The University of Tasmania was invited to host the 7th triennial symposium of the Cephalopod International Advisory Council (CIAC) in February 2006. This is the premier international cephalopod symposium attended by scientists, industry, and managers from around the world. The...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Wild Catch
Symposium
Stock Assessment
Reproduction
Population Dynamics
SPECIES
Gould's Squid
Northern Calamari
Southern Calamari
Cuttlefishes
Octopuses
Environment
PROJECT NUMBER • 2001-214
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: development of a disease zoning policy for marteiliosis to support sustainable production, health certification and trade in the Sydney rock oyster

The edible oyster industry in Australia is currently valued at around $62.5 million annually of which rock oyster production accounts for approx 56%. For the industry to survive in the long-term requires the ability to service what may become a premium domestic market demanding a high quality...
ORGANISATION:
Queensland Museum
TAGS
Trade
Sustainability
Disease
Diagnostic
Aquaculture
SPECIES
Sydney Rock Oyster
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