224 results

Collaborative investigation on the usage and stock assessment of bait fishes in southern and eastern Australian waters, with special reference to pilchards (Sardinops sagax neopilchardus); extension into Qld and NSW

Project number: 1995-043
Project Status:
Completed
Budget expenditure: $275,958.14
Principal Investigator: Jonathan Staunton-Smith
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 16 Aug 1995 - 30 Jun 2001
Contact:
FRDC
TAGS
Stock Assessment
Reproduction
Recreational Fishing
Population Dynamics
Modelling

Objectives

1. Identify the main clupeoid species accessible in South-East Queensland and experimentally determine the seasonal abundance of these species.
2. Define size and age structure and examine the reproductive cycle of the major small pelagic species present in South-East Queensland.
3. Estimate egg densities and spawning biomass indices of the small pelagic clupeoid species present in South-East Queensland waters.
4. Examine methods of estimating potential fishery yields for a limited purse seine fishery in South-East Queensland.
5. Examine the species composition from experimental purse seining in South-East Queensland and comment on areas of possible conflict with other users.
6. Examine the potential impact of developing and existing purse seine fisheries on predator species.

Final report

Author: Jonathon Staunton-Smith
Final Report • 2000-07-27 • 1.44 MB
1995-043-DLD.pdf
Environment
PROJECT NUMBER • 1995-022
PROJECT STATUS:
COMPLETED

Population dynamics and management of spanner crabs in southern Queensland

Spanner crabs (Ranina ranina) represent a valuable resource to southern Queensland and northern NSW. The fishery became established in the late 1970s, and as a result of an almost exponential increase in fishing effort between 1992 and 1995 an output-controlled limited entry management arrangement...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
TAGS
Yield
Wild Catch
Sustainability
Population Dynamics
Mortality

Publication of the Australian Seafood Industry Directory 1995

Project number: 1994-170
Project Status:
Completed
Budget expenditure: $60,049.30
Principal Investigator: Stephen Thrower
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 29 May 1995 - 20 Nov 1996
Contact:
FRDC
TAGS
Media
Data
Consumer

Objectives

1. Establish and maintain a database listing seafood processors and their products and the key service providers, both private and government
2. Publish a directory in both hard and disc copy compiled from the above database for sale to interested parties
3. Provide a referral service using extracts from the directory

Final report

Final Report • 1.50 MB
1994-170-DLD.pdf

Informing and capitalising on seasonality of Australian caught seafood

Project number: 1994-166
Project Status:
Completed
Budget expenditure: $10,000.00
Principal Investigator: Francene Brown
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 29 Dec 1995 - 30 Jun 1997
Contact:
FRDC
TAGS
Publication

Objectives

1. Provide on mass, simple and focused information chart(s) (for example , brochure or mini-poster) on the seasonality of Australian species
2. As detailed at B4 Objectives.

DNA markers and genetic stock structure in commercial species of penaeid prawns in the east coast fishery

Project number: 1994-165
Project Status:
Completed
Budget expenditure: $64,666.00
Principal Investigator: Shane Lavery
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 28 Jun 1995 - 31 Dec 1998
Contact:
FRDC
TAGS
Stakeholder
Migration
Fisheries Management
Commercial Species
Biology

Objectives

1. Assess the utility of a range of DNA techniques for examining genetic variation within species of penaeid prawn
2. Refine those techniques for examining east coast parwn stocks
3. Describe the genetic stock structure of two commercial species (Penaeus esculantus and P. plebejus) throughout their east coast distribution
4. Determine whether genetically distinct stocks of these species exist in the east coast fishery and, if so, locate the boundaries between such stocks
5. Quantify the potential rates of effective prawn migration between regions for each species
6. Provide specific advice on the management implications of the results

Integrated stock assessment and monitoring program

Project number: 1994-161
Project Status:
Completed
Budget expenditure: $477,960.00
Principal Investigator: Ian Brown
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 28 Jun 1995 - 30 Jun 2001
Contact:
FRDC
TAGS
Value Add
Trade
Stock Assessment
Post Harvest
Marketing

Objectives

1. To develop and implement a programme for monirtoring and assessing the status of fish stocks in southern Queensland

Final report

Author: Ian Brown
Final Report • 2000-07-28 • 3.46 MB
1994-161-DLD.pdf

Value adding to seafood by application of modern drying techniques

Project number: 1994-123
Project Status:
Completed
Budget expenditure: $86,250.83
Principal Investigator: Steve L. Slattery
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 16 Dec 1994 - 30 Apr 1997
Contact:
FRDC

Objectives

1. ACTo apply the heat pump drying process to seafoods
2. Produce appropriate samples of heat pump dried seafood for evaluation with the assistance of industry collaborators
3. Produce appropriate samples of heat pump dried seafood for evaluation with the assistance of industry collaborators

Final report

Author: S.L. Slattery
Final Report • 2017-09-29 • 1.72 MB
1994-123-DLD.pdf

Summary

There is an enormous market throughout the world for dried seafood, many of which command high prices. Six major markets have been identified by FAO. The Japanese market is very large and is growing slowly. Markets in Hong Kong and Spain, Germany, Italy are big and growing while that in Portugal is very big and growing fast. Except for Portugal, these countries are in the top 10 biggest importers of fisheries products.

While fresh and frozen seafood dominates world markets there is still an increasing demand for dried seafood. Although a large part of this trade is in large salted, dried fish such as cod (bacalao) and similar gadoid species which Australia could not supply, there are markets for a diversity of products which could be produced here.

This study was produced as the first milestone report and was intended to identify suitable prospects for experimentation. Both domestic and overseas markets were analysed and a number of suitable species were identified.

Project products

Report • 2017-09-29 • 5.67 MB
1994-123-Product.pdf

Summary

Australia has a relatively long coast line with a variable continental shelf. Our waters are nutrient deficient which results in lower volume catches of seafood. The potential value of the deep water fisheries is largely unknown.

If a premium price can be associated with clean unpolluted fisheries products then this could well place Australia in a more favourable position. The demand for cleaner pollution-free agricultural products could see appropriate flow-ons to Australian seafood products. With a 200km economic zone and reasonably unpolluted waters, Australian fisheries products could be in high demand. Conversely the high harvesting and freighting costs involved in the fishing industry may well inhibit this possible opportunity.

Higher returns in prawn aquaculture: Pilot program to create production stocks that are all female

Project number: 1994-070
Project Status:
Completed
Budget expenditure: $163,967.00
Principal Investigator: Ken Reed
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 2 Nov 1994 - 31 Aug 2005
Contact:
FRDC
TAGS
Productivity
Physiology
Husbandry
Biology

Objectives

1. Establish the genetic mechanism of sex determination in penaeid prawn and provide genetic markers that will allow sex to allow sex to be determined before visible signs are evident
2. Identify and isolate gene(s) involved in, and ideally resposible for triggering sex determination. Studies of the potential for hormones to induce sex reversal will also be undertaken
3. Produce the first sex reversed prawns as broodstock.

Final report

Author: Dr K. C. Reed Dr L. West
Final Report • 2005-08-31 • 6.36 MB
1994-070-DLD.pdf

Summary

Female penaeid prawns grow faster and may have higher feed conversion efficiency than do males.  If a technique could be devised to bias the sex ratio of larvae produced so that the proportion of females in each brood outnumbered the males, the commercial grower could achieve dramatically improved production.

To enable control of larval sex ratios, the goal of this grant was to identify the genetic material in prawn chromosomes that triggers development into a male or female prawn.  Once it is possible to identify the genes controlling the sex of maturing prawn larvae, those genes can be targeted and manipulated through molecular techniques.

Genetic and chromosomal sex determination is not understood in most crustacean species.  Penaeid prawns possess numerous, uniformly small chromosomes so that potential sex chromosomes have never been identified with classical karyotypic microscopic studies.  Molecular genetic techniques provide a new tool for increased resolution of sex-determining factors.

We studied two cohorts of genetically inbred prawns to directly reduce the natural genetic variability between individuals and to further accentuate the genetic variability between the sexes.  The first experimental group was bred from a match between two wild-caught Penaeus monodon.  The offspring from this mating were all siblings (an F1 generation).  These prawns were grown by Dr. David Hewitt and Mr. Shane Hansford at Bribie Island Aquaculture Research Centre.  The second experimental group was bred from another commercial species, Penaeus japonicus.  Dr. Nigel Preston and Dr. Peter Crocos supplied an F2 generation from pond-reared prawns grown at the CSIRO Marine Laboratories in Cleveland.  Creating a genetically inbred F2 generation requires more time because two wild caught Penaeus japonicus are mated to obtain F1 offspring.  Then two siblings from the F1 experimental group must be raised to maturity and bred so that their offspring possess increased genetic similarity, as an F2 generation.

Our studies revealed an unexpectedly high genetic variability between individuals of the same prawn species.  Further, we discovered that prawns use a system of genetic sex determination that is distinct compared to the chromosomal organisation of most well known organisms.  

Keywords: Sex determination, penaeid prawns, Penaeus monodon,  Penaeus japonicus, cell culture, aquaculture. 

Development and implementation of a national standard for a recreational fisheries database by all fisheries agencies Cancelled, now 95/054

Project number: 1994-052
Project Status:
Completed
Budget expenditure: $0.00
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 29 Jun 1995 - 31 Aug 1997
Contact:
FRDC
TAGS
Data

Objectives

1. To provide the tool to facilitate the build up of an on-going national information base
2. To ensure the database meets the standards set by the Fisheries Statistical Working Group
3. To ensure the database can be integrated with commercial catch and effort databases

A study of the biological parameters associated with yield optimisation of Moreton bay bugs

Project number: 1994-019
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Clive P. Keenan
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 29 Jun 1995 - 30 Jun 1996
Contact:
FRDC
TAGS
Wild Catch
Mortality
Harvest Strategy
Fisheries Management
Biology

Objectives

1. Estimate biological parameters (growth and natural mortality) required to model optimal size limits for two species of Moreton Bay bug
2. Identify physical evidence of the practice of "scrubbing" ovigerous female bugs, develop expertise in the identification of scrubbed bugs, and model the effects of this practice on yield from the stocks of the two species
3. Determine if a third species is present in the trawl fishery of Mackay and its contribution to bug landings
4. Initiate attaining of population parameters necessary for optimising the harvest of the resource
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