115,100 results
Environment
Environment
PROJECT NUMBER • 2004-084
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: investigating and managing the Perkinsus related mortality of blacklip abalone in NSW - phase 1

Since the early 1990’s, a significant proportion of blacklip abalone (Haliotis rubra) along approximately 500 km of the NSW coastline between Port Stephens and Jervis Bay have died. Sporadic histological examination of moribund abalone since 1992 and a survey of infection prevalence in abalone...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
Environment
PROJECT NUMBER • 2004-080
PROJECT STATUS:
COMPLETED

Aquatic Animal Health Subprogram: development of a national translocation policy using abalone and prawns as templates for other aquatic species

The use of scientifically based hazard identification, risk analysis and risk management is fundamental to managing unwanted effects. Hazards, such as quarantine incursions, will continue to occur despite the use of risk assessment methodologies but the frequency and severity of their...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Adoption
Environment
PROJECT NUMBER • 2004-071
PROJECT STATUS:
COMPLETED

National Strategy for the Survival of Released Line Caught Fish: maximising post-release survival of line caught flathead taken in sheltered coastal waters

Flathead represent the largest catch of any fish group taken by recreational fishers in Australia and, after bream, account for the greatest numbers of fish released by recreational fishers (National Recreational Fishing Survey). Flathead are taken around Australia, with catches concentrated...
ORGANISATION:
University of Tasmania (UTAS)
Environment
PROJECT NUMBER • 2004-070
PROJECT STATUS:
COMPLETED

National Strategy for the Survival Of Released Line Caught Fish: planning, project management and communications Phase 2

The National Strategy for the Survival of Released Line Caught Fish was an initiative of the Fisheries Research and Development Corporation. The strategy evolved during 2001 and 2002 following the funding of a project on reef fish survival in Western Australia in 2000. It was formally approved in...
ORGANISATION:
Infofish Australia Pty Ltd

Effects of Trawl Subprogram: evaluation of the effectiveness of reducing dolphin catches with pingers and exclusion grids in the Pilbara trawl fishery

Project number: 2004-068
Project Status:
Completed
Budget expenditure: $79,535.23
Principal Investigator: Peter Stephenson
Organisation: Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date: 30 Aug 2004 - 11 Mar 2007
Contact:
FRDC

Need

The performance report on the Pilbara Trawl Fishery to Environment Australia reported a dolphin catch of approximately 50 per year. The initial reaction of EA to this level of dolphin catch indicated that continued exports from this fishery could be in jeopardy, making it necessary to reduce the dolphin mortality. Industry are aware of this need and are willing to participate in trials.

Objectives

1. Determine the occurrence of dolphins swimming into the net on vessels with exclusion grids, compared to vessels without grids, and to determine the behaviour and fate of the animals encountering the grid.
2. Determine the occurrence of dolphins swimming into the net on vessels with pingers, compared to vessels without pingers.
3. Determine the mortality rate of dolphins on trawls where pingers or grids are deployed compared to trawls without mitigation devices.

Final report

ISBN: 1-877098-98-1
Author: Peter Stephenson
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