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Industry
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 Primary Industries (QLD)
Environment
PROJECT NUMBER • 2015-014
PROJECT STATUS:
COMPLETED

Estimating the impacts of management changes on bycatch reduction and sustainability of high-risk bycatch species in the Queensland East Coast Otter Trawl Fishery

Keywords: Discards, elasmobranchs, post-trawl survival, Aptychotrema rostrata, Trygonoptera testacea, turtle excluder device, bycatch reduction device, TEDs, BRDs, ecological risk assessment, ERA Executive Summary: Researchers from the Queensland Government’s Department of...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
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 Primary Industries (QLD)
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 Primary Industries (QLD)
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.

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