Project number: 2013-225
Project Status:
Completed
Budget expenditure: $60,000.00
Principal Investigator: Ian Knuckey
Organisation: Fishwell Consulting Pty Ltd
Project start/end date: 10 Oct 2013 - 10 Feb 2014
Contact:
FRDC

Need

There are inherent challenges in managing small scale multi-species, multi method fisheries, particularly in a community based fishery context, which require careful consideration in the development of appropriate harvest strategies. While there is a significant degree of targeting involved in multi-species fisheries, the majority of target species will not always be caught during individual gear sets, and the species composition of the catch may be spatially or temporally specific. It can be difficult to ensure that all species caught are fished sustainably (and not only the target species) because species have various life-history characteristics and productivities, and different degrees of susceptibility to the gear. Many species are caught by a variety of gears and it is often difficult to account for all sources of mortality in assessments and the different life stages targeted by particular gear types. The development of harvest strategies for data-poor fisheries presents additional challenges in attempting to reconcile available information and capacity with formal, defensible strategies that achieve the desired objectives for the fishery and fisheries legislation. There is a need for harvest strategies, particularly for community-based fisheries, to be easily understood and accepted by key stakeholders, pragmatic and cost effective.

The LCF is a small scale multi-species, multi-method community based fishery located at the end of the Murray-Darling system and is subject to varying environmental conditions (drought and flooding). The primary target species include Pipi, Yellow-eye Mullet, Golden Perch, Mulloway, Greenback Flounder and Black Bream. A number of other marine, estuarine and freshwater species (native and exotic) are also taken. The fishery contributes to the socio-economic well-being of regional coastal communities in the Lakes and Coorong region through commercial and recreational activity and harbors significant cultural and spiritual significance for the Ngarrindjeri people.

Objectives

1. Identify the attributes required in an environmentally limited fishery that can be used to determine optimal management frameworks.
2. Develop a set of performance indicators that can be used to support management of an environmentally diverse suite of species in a highly variable ecosystem.
3. Develop a framework that supports more flexible and adaptive management processes to provide for business adaptability and structural adjustment in the Fishery while limiting effort to the appropriate sustainable level.
4. Create a management framework that can be adapted for use across a range of small scale multi-species, multi-method community based fisheries.

Final report

ISBN: 978-0-9873286-9-4
Author: Ian Knuckey
Final Report • 2015-02-25 • 3.42 MB
2013-225-DLD.pdf

Summary

The commercial Lakes and Coorong Fishery (LCF) operates at the end of the Murray-Darling Basin where the river system meets the Southern Ocean, encompassing a diverse range of freshwater, estuarine and marine habitats and communities.  This multi-gear fishery targets a range of species including Pipi (Goolwa cockle - Donax deltoides), Mulloway (Argyrosomus japonicus), Yelloweye Mullet (Aldrichetta forsteri), Black Bream (Acanthopagrus butcheri), Greenback Flounder (Rhombosolea tapirina), Golden Perch (Macquaria ambigua), and Bony Bream (Nematalosa erebi) as well as the introduced fish species European Carp (Cyprinus carpio) and Redfin (Perca fluviatilis).  

The outputs of this project will be used to improve the performance of the LCF and will be directly incorporated into the development of harvest strategies developed for finfish species under the new fishery management plan due in 2015. The longer term outcome from this project is that the approach used to develop this management framework can be adapted to other similar fisheries around Australia. Using the capacity of the Australian Fisheries Management Forum, the development of fishery management frameworks and performance indicators will be provided to other jurisdictions to support fishery management improvement in other small-scale, multi-species, multi-method, community-based fisheries.

Keywords: Harvest Strategy, small-scale fisheries, Lakes and Coorong Fishery, data-poor fishery

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