10 results
Industry
PROJECT NUMBER • 2019-003
PROJECT STATUS:
COMPLETED

Harvest and slaughter methods for farmed Barramundi to minimise fish stress and achieve premium market quality and improved fish welfare outcomes

The Australian Barramundi Farmer's Association (ABFA) has learned how harvest teams on farms can take simple preparatory steps to ensure the quality and consistency of Australian farmed Barramundi reaching the market. Scientists have worked with farmers that have nurtured their Barramundi for...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
SPECIES

Aquaculture diet development subprogram: diet validation and feeding strategies

Project number: 1996-393
Project Status:
Completed
Budget expenditure: $394,456.00
Principal Investigator: Chris Barlow
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 13 Oct 1996 - 7 Jun 2004
Contact:
FRDC

Objectives

1. Demonstrate the cost-effectiveness of the diets incorporating 'high priority' Australian ingredients which meet determined or published nutrient requirements for fish/prawns reared in commercially applicable facilities.
2. Identify optimum feeding schedules, based on the combined costs of feeds and labour associated with feeding, for the on-growing of barramundi and silver perch to market size (0.5-3 kg).
3. Determine the potential for compensatory growth in silver perch and barramundi.
4. Determine the organoleptic qualities of fish/prawns fed different diets.
5. Communicate the research findings to industry and the scientific community by means of technical and scientific publications.
Environment
PROJECT NUMBER • 2018-047
PROJECT STATUS:
COMPLETED

Barramundi origins: determining the contribution of stocking to the Barramundi catch on Queensland's east coast

Researchers from Queensland’s Department of Agriculture and Fisheries, James Cook University, and the University of Western Australia tested a range of otolith-based and genetic methods to identify hatchery-born from wild-born Barramundi. The project took place in the Dry Tropics region, where...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
SPECIES

Aquaculture diet development subprogram - Dietary requirements and optimal feeding practices for Barramundi (Lates Calcarifer)

Project number: 1992-063
Project Status:
Completed
Budget expenditure: $250,109.14
Principal Investigator: Kevin C. Williams
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 11 Oct 1992 - 17 Nov 1999
Contact:
FRDC

Objectives

1. To develop feeding strategies and diets for periods of fast growth (summer) and slow growth (winter) which optimise feed conversion and growth rate
2. To determine the appropriateness of an extruded floating pellet for feeding barramundi under commercial conditions
3. To investigate the potential for sparing of fish meal in barramundi grow-out diets using synthetic amino acids and cheaper sources of supplementary protein

Final report

Author: Kevin Williams Chris Barlow
Final Report • 1999-10-20 • 9.41 MB
1992-063-DLD.pdf

Summary

Feed is by far the single largest cost component of barramundi farming and accounts for about 35% of on-farm operating costs. Reducing feed costs by better tailoring dietary specifications to the nutrient requirements of the fish, by providing these nutrients at least cost and by adopting feeding practices that optimise productivity will greatly assist farm profitability. In Australia, barramundi are pond-reared over latitudes from 5°S to 22°S and this results in large seasonal variations in water temperature and consequently, in growth rate of the fish.

The research conducted in this project sought primarily to characterise the effect of water temperature on fish productivity and how modification of dietary nutrient specifications and/or feeding practices could assist in improving farming profitability. This entailed research to define the fish's response to changes in dietary supply of critical nutrients over a range of water temperatures. Research examining the efficacy of crystalline amino acids in diets for barramundi was carried out in a supplementary project (FRDC 95/69); research on the nutritive value of terrestrial feed ingredients and their suitability as replacements of fishmeal in diets for barramundi is reported in FRDC 93/120-04.

Aquaculture Diet Development Subprogram - Replacement of fishmeal in diets for barramundi - improving nutritive value of alternative feedstuffs using crystalline amino acids

Project number: 1995-069
Project Status:
Completed
Budget expenditure: $172,284.00
Principal Investigator: Chris Barlow
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 18 Jun 1995 - 26 Mar 2000
Contact:
FRDC

Objectives

1. Establish the efficacy of crystalline amino acids in sparing dietary protein for juvenile barramundi.
2. Improve the nutritional quality of fishmeal alternatives through the use of crystalline amino acids.
3. Improve the nutritional quality of fishmeal alternatives using complementary intact protein sources.

Final report

Author: Kevin Williams and Chris Barlow
Final Report • 1999-03-01 • 2.23 MB
1995-069-DLD.pdf

Summary

Australia has an abundant supply of terrestrial animal and vegetable protein feeds which has the potential to at least partly if not fully replace the fishmeal presently used in compounded aquaculture diets. A major difference between marine and terrestrial protein sources is the marked difference in the amino acid make up of the protein. Compared to fishmeal with an amino acid index of 100, terrestrial plant protein sources are very low in methionine (Met; 20 to 80), lysine (Lys; 20 to 85) and threonine (Thr; 55 to 85). Terrestrial animal protein sources score higher but the same three essential amino acids are often deficient. An imbalanced essential amino acid profile of the protein markedly reduces the nutritive value of the diet for terrestrial monogastric animals such as pigs and poultry. In these species, crystalline amino acids (C-AAs) are a proven and cost-effective way of restoring the dietary amino acid balance. However, the efficacy of C-AAs in aquaculture diets is quite equivocal. A clear understanding of the essential amino acid requirements of barramundi and the extent to which C-AA can improve the nutritive value of terrestrial protein feed ingredients is pivotal to further diet development for this species.

Keywords: Amino acids, Amino acid efficacy, Nutrient retention, Meat meal, Sensory evaluation, Fishmeal replacement

Effects of Trawling Subprogram: commercialisation of bycatch reduction strategies and devices in northern Australian prawn trawl fisheries

Project number: 1996-254
Project Status:
Completed
Budget expenditure: $986,253.71
Principal Investigator: Julie B. Robins
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 8 Aug 1996 - 30 Jun 2001
Contact:
FRDC

Objectives

1. Inform and consult commercial trawl fishers about ways and means of reducing the catch of non-target organisms in their trawl nets.
2. Further develop promising by-catch reduction devices and other by-catch reduction strategies under commercial conditions.
3. Document, accumulate and publish performance data of turtle excluder devices and by-catch reduction gears suitable for the commercial fishing industry of the Queensland East Coast, the Torres Strait, the Northern Prawn Fishery, and other interested parties.
4. Encourage and promote the use of by-catch reduction devices by commercial trawl operators.
Environment
PROJECT NUMBER • 2019-062
PROJECT STATUS:
CURRENT

Knowledge to improve the assessment and management of Giant Mud Crabs (Scylla serrata) in Queensland

Researchers from the Department of Agriculture and Fisheries (DAF) Queensland, CQUniversity (CQU) and the Department of Primary Industries (DPI) NSW Fisheries are collaborating on a Fisheries Research and Development (FRDC) co-funded research project on mud crab populations in Queensland. The...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
SPECIES

Tactical Research Fund: Reducing the impact of discarded recreational fishing tackle on coastal seabirds

Project number: 2011-057
Project Status:
Completed
Budget expenditure: $40,000.00
Principal Investigator: Matthew J. Campbell
Organisation: Department of Agriculture and Fisheries EcoScience Precinct
Project start/end date: 15 Jan 2012 - 15 Mar 2013
Contact:
FRDC

Need

This proposal will address the FRDC Recfishing Research priority area "Assessing the impact of recreational fishing methods on conservation values of aquatic habitats" as announced in the 2012 Annual Competitive Round Call for Expressions Of Interest. After making inquiries with seabird rescue organisations, it has become apparent that seabird entanglements in discarded fishing tackle is of major concern. Australia Zoo Wildlife Hospital report that their rescue unit responded to approximately 300 calls for bird entanglements in discarded fishing tackle in 2011 (to August 1). Further, the Rescue Hotline of Pelican and Seabird Rescue Inc. have received approximately 400 calls in 2011 (to the time of writing - 10/9/2011). These figures are unacceptable and measures need to be taken to decrease the incidence of seabird interactions with discarded recreational fishing tackle. The injuries that result from these interactions are often catastrophic, with a high proportion of entangled animals being euthanised. Healthy Waterways has produced a provocative poster, attached, depicting a pair of budgerigars surrounded by fishing line and hooks. Such negative stereotypes need to be addressed and, as such, there is a need to educate recreational fishers as to the consequences of the careless discarding of fishing tackle. This subject was recently highlighted in a Queensland recreational fishing publication, Queensland Fishing Monthly (see attachment). Both recreational fishing representative groups, Sunfish and Ecofishers, have expressed concern regarding this issue. A fifteen minute search at a secluded recreational fishing location in the northern suburbs of Brisbane by two people resulted in the collection of the fishing tackle pictured in the attachment (13/09/2011 - Tingalpa Creek). Although this could be construed as an environmental problem and beyond the purview of FRDC, it certainly reflects poorly on recreational fishers and, as such, an extension/educational project would help alleviate the problems highlighted in this proposal.

Objectives

1. Quantify the extent of seabird entanglement in northern Moreton Bay
2. Convene a workshop involving relevant stakeholders in order to establish methods for mitigating seabird entanglements
3. Promote the responsible removal of discarded fishing tackle from popular fishing locations in northern Moreton Bay

Final report

ISBN: 978-0-7345-0437-1
Author: Matthew Campbell
Industry
PROJECT NUMBER • 1992-071
PROJECT STATUS:
COMPLETED

Live transport of crustaceans in air - prolonging the survival of crabs

We studied the live transport of crustaceans in air, using the spanner crab Ranina ranina as an example, and developed guidelines for handling live spanner crabs which we presented to an industry workshop. Our findings were also of general relevance to the live shipment of other oceanic crab...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
Industry
PROJECT NUMBER • 2009-774
PROJECT STATUS:
COMPLETED

Seafood CRC: harvest strategy evaluations and co-management for the Moreton Bay trawl fishery

The Moreton Bay otter trawl fishery is a multispecies fishery, with the majority of the catch composed of various species of prawns, squid and Moreton Bay Bugs. The project was an initiative of the MBSIA and developed from concerns over a number of issues. These included concern over declining...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
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