15 results
Industry
PROJECT NUMBER • 1998-360
PROJECT STATUS:
COMPLETED

Waterproof labelling and identification systems suitable for shellfish and other seafood products

This report outlines the results of investigations into the feasibility of cost effectively marking or labelling individual oysters and other shellfish for product differentiation and to facilitate rapid and efficient recall of product in the event of a potential public health incident. A number of...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
Environment
Environment
Environment
PROJECT NUMBER • 1994-042
PROJECT STATUS:
COMPLETED

Sampling estuarine fish species for stock assessments

Estuarine fishes in NSW are exploited by commercial and recreational fishers and are subject to significant pressure from habitat degradation. The NSW commercial estuarine finfish fishery is highly complex as it is based on multi-species and many fishers using variety of methods. Furthermore, there...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)

People development program: 2014 FRDC International Travel Award - Dr Ben Doolan

Project number: 2008-314.38
Project Status:
Completed
Budget expenditure: $6,000.00
Organisation: Department of Primary Industries and Regional Development (NSW)
Project start/end date: 30 May 2014 - 30 Oct 2014
Contact:
FRDC

Need

Inland fish stocking programs in NSW are administered by NSW DPI under the NSW Freshwater Fish Stocking Fishery Management Strategy (FMS) which outlines the rules, regulations and programs for fish stocking. The FMS is due for review in the near future and it is an opportune time to investigate the strategies used by international agencies for the management of their stocking programs. An extensive worldwide network of scientists and fisheries managers will be in attendance at the FSBI conference in Hull and it will be most beneficial to gain exposure on an international scale, obtain up to date information and share perspectives on inland fisheries management with experts from international agencies. In addition to attendance at the conference, I have made contact with several staff members from the Environment Agency and the Angling Trust to gain further insights into the management of inland fish stocking programs in the UK. I have organised to meet with these experts at various locations including Brampton, Reading and Frimley outside of the conference to gain further exposure and directly observe management practices and perceptions from both Government and non-Government organisations which may be transferable to existing NSW programs and other Australian jurisdictions developing or refining stocking policies. The project will assist in bridging the gap between management and research by potentially identifying key research priorities for stocking programs. The project will importantly enhance my international presentation, networking and analysis skills which are essential for my development as a future leader in fisheries management.

Objectives

1. To provide a presentation and receive feedback from an international audience on the management of NSW freshwater fish stocking programs and assessment process.
2. To network with other fisheries managers and researchers.
3. To gain knowledge from international fisheries managers to apply to NSW stocking programs.
4. To add to my personal development and leadership skills through the above objectives.

Effects of Trawling Subprogram: the interaction between fish trawling and other commercial and recreational fisheries

Project number: 1992-079
Project Status:
Completed
Budget expenditure: $677,143.89
Principal Investigator: Geoff Liggins
Organisation: Department of Primary Industries and Regional Development (NSW)
Project start/end date: 11 Oct 1992 - 30 Dec 1996
Contact:
FRDC

Objectives

1. To provide the first a detailed description of the catch species composition and by-catch from fish trawling outside SE trawl areas in NSW (north of Barrenjoey Head)
2. To provide the first detailed description of the by-catch of fish trawling inside the SET area
3. To assess the importance of by-catch (inside and outside SET areas) in the Total impact of fish trawling on other commercial and recreational fisheries
4. To assess the impact of trawling inshore (nursery) areas on commercial fisheries outside these areas in particular the SET

Final report

ISBN: 0 7310 9402 6
Author: Geoffrey W. Liggins
Final Report • 2017-09-29 • 4.44 MB
1992-079-DLD.pdf

Summary

There is worldwide concern over the potential effects of by-catch and discarding of fish in commercial fisheries, particularly trawling. Although mortalities of discards are highly variable, it is likely that a large proportion of fish discarded at sea by trawlers do not survive. Consequently, discards at sea represent real losses from fish populations. Therefore, stock assessments that ignore the discarded component of catch are biased by an unknown amount, resulting in biomass and yield estimates that may be incorrect.

In Australia, the issue of primary concern is the direct mortality resulting from the capture and discard of commercially and recreationally important species by trawlers. This may result in negative impacts on: (i) stocks of fish targeted by the fishery concerned and/or (ii) other commercial or recreational fisheries (interacting fisheries) which catch the species discarded.

Fish trawling occurs off the coast of NSW between Crowdy Head and Eden and components of this fishery are managed by NSW Fisheries (north of Barrenjoey headland and less than 3 nm offshore to the south of Barrenjoey) and by the Commonwealth - the South East Fishery (> 3 nm offshore south of Barrenjoey).

Prior to the commencement of this project (in 1992): (i) except for anecdotal reports, nothing was known about quantities and sizes of fish discarded by fish trawlers; (ii) no reliable information existed about the quantities and sizes of fish in retained catches for fish trawlers north of Barrenjoey; (iii) quantities and sizes of non-quota species retained by fish trawlers in the SEF were not generally known.

Consequently, there was a need to (i) quantify magnitudes and size-compositions of retained and discarded catches of fish trawlers; (ii) facilitate assessment of the impact of by­catch and discards on the fish trawl fisheries in NSW and on interacting fisheries.

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