150 results
Environment
PROJECT NUMBER • 1999-154
PROJECT STATUS:
COMPLETED

Determining biological characteristics of the champagne crab (Hypothalassia armata) for management purposes

During recent years, commercial trap fisheries have developed for the champagne and crystal crabs in deep waters off the lower west and south coasts of Western Australia. Thus, data on crucial aspects of the biology of these species were required to enable plans to be developed for conserving their...
ORGANISATION:
Murdoch University
Environment

Fisheries biology and interaction in the northern Australian small mackerel fishery

Project number: 1992-144
Project Status:
Completed
Budget expenditure: $486,531.00
Principal Investigator: Darren Cameron
Organisation: Department of Primary Industries (QLD)
Project start/end date: 17 Apr 1993 - 28 Nov 2003
Contact:
FRDC

Objectives

1. Determine whether the Australian spanish mackerel resource, comprising four main species of the genus Scomberomorous, is exploited recreationally and commercially in three distinct areas of tropical Australia, in each of which the stock of each species is an autonomous stock
2. To determine if the species composition of the resource is the same in the 3 areas
3. To determine if the three unit stocks of search of the 3 smaller species differ as to growth rate, reproductive potential or survival rate under average environmental conditions or in consequence in composition as to sex age and size
4. To determine if the resultsobtained from Deuel surveys will be sufficient basis for allocating fishery access as between commercial and recreational fishers
5. To determine if the Deuel special survey method can yield a reliable estimate of the amount of the fishing for the small mackerels by commercial and recreational fishers in remote regions of northern Australia.

Final report

Author: Darren Cameron and Gavin Begg
Final Report • 2002-05-31 • 10.21 MB
1992-144-DLD.pdf

Summary

The small mackerels comprising school mackerel (Scomberomorus queenslandicus), spotted mackerel (S. munroi) and grey mackerel (S. semifasciatus) are important and valued species to recreational and commercial fishers in northern Australia. Prior to this project very little was known about the basic biology of, or fisheries for, small mackerels. Each species was found to exhibit distinct life history patterns with differing stock structures. Though there is some overlap between fisheries, there was much spatial and temporal separation of the fisheries, with gill net specialisation for each species targeted by the commercial fishery. Recreational hook and line fisheries for school mackerel and spotted mackerel were important with most of the grey mackerel harvest taken by the commercial sector.
Industry
PROJECT NUMBER • 2009-714.30
PROJECT STATUS:
COMPLETED

Seafood CRC: economic management guidance for Australian abalone fisheries

Current Australian abalone fisheries management primarily uses biological and catch data to set total allowable catch limits (TACs). Performance targets are usually based on trends in catch rate or catch and aim to maintain these indicators within historic bounds that have prevented recruitment...
ORGANISATION:
University of Tasmania (UTAS)
Environment

Northern pelagic fish stock research

Project number: 1983-049
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Shirley Jeffrey
Organisation: CSIRO Oceans and Atmosphere Cleveland
Project start/end date: 28 Dec 1984 - 31 Dec 1984
Contact:
FRDC

Objectives

1. Obtain biological data on population dynamics of pelagic resources of shark, mackerel and tuna in northern Aust waters
2. use data to more effectively manage Taiwanese fishery which is supported by these resources
3. examine potential for increased Aust participation

Final report

Author: Shirely Jeffrey
Final Report • 2017-09-29 • 14.92 MB
1983-049-DLD.pdf

Summary

In 1982, CSIRO applied to the Fishing Industry Research Trust Account for funding of a joint biological investigation of northern Australian pelagic fish stocks. At that time these stocks supported a Taiwanese surface gill-net fishery based on sharks, tunas and Spanish mackerel.

During the 1970's the total annual catch taken by the Taiwanese fishery from the area between northern Australia and Papua New Guinea averaged about 25,000 tonnes live weight. With declaration of the Australian Fishing Zone (AFZ) in 1979 the fishery came under Australian jurisdiction and management measures were introduced. Simple yield estimating procedures based on the commercial catch data were used to derive an annual quota of 7,000 tonnes processed weight (about 10,000 tonnes live weight). The quota was assumed to be set at a conservative level of the potential yield. However, the only information available on the stocks at this time was some limited data on species composition together with preliminary data on size and sex distributions and reproduction of some of the shark species obtained by sampling the commercial catch through the AFZ observer program. Little information was available from inshore waters not fished by the Taiwanese and nothing was known about stock structure or the population dynamics of the main species that would allow a more scientifically defensible position to be adopted on the existing exploitation rate.

This study was initiated because of mounting government concern over the lack of research into the fishery, and because of increasing interest by industry in Australian exploitation of the resource. The program was a joint undertaking between CSIRO, the Commonwealth Department of Primary Industry and the State Fisheries of Queensland, Western Australia and the Northern Territory. The program aimed to provide information on the stock structure, migration, age and growth, recruitment and mortality of the principal species, and to examine the yield potential of the stocks and the potential for increased Australian participation in the fishery. It was particularly important to know whether the target species comprised single stocks or a number of discrete stocks across northern Australia. This information has implications for management of the foreign and domestic fisheries.

Environment
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Industry
PROJECT NUMBER • 2015-202
PROJECT STATUS:
COMPLETED

Maximising net economic returns from a multispecies fishery

Achieving fishery MEY may result in a reduction in net economic returns in a broader sense if the loss to consumers exceeds the gain to the industry. Such a loss may occur if supplies to the local market are reduced and prices paid by consumers increase. This results in a transfer of benefits from...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
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