21 results
Environment

Opportunities and impacts of range extending scalefish species: understanding population dynamics, ecosystem impacts and management needs

Project number: 2018-070
Project Status:
Completed
Budget expenditure: $249,587.00
Principal Investigator: Sean Tracey
Organisation: University of Tasmania
Project start/end date: 31 May 2019 - 30 Nov 2020
Contact:
FRDC

Need

Species-level responses to ocean warming is a priority research area as they underpin the structure and function of marine ecosystems and the productivity of fisheries that operate within them.
There are a number of range extending species that have become increasingly abundant in Tasmanian waters, providing new fishing opportunities for recreational and, to a lesser extent, commercial fishers. Species in this group include Pink Snapper, King George Whiting and Yellowtail Kingfish. While King George Whiting are known to spawn off the north coast it is unclear as to whether the other species have or are likely to become established as self-sustaining populations in Tasmanian waters or simply persist as spill-over from populations that are centered off mainland Australia. If the former is the case, it will be especially important to consider population attributes such as growth, mortality and reproductive dynamics relevant to the Tasmanian populations when developing and refining management arrangements to maximise the opportunities these 'new' species bring.

In addition, the broader ecosystem impacts of such range extending species, including competition with resident species at similar trophic levels, are unknown but could have consequences for other recreationally and commercially important species. Understanding these relationships will have benefits for the assessment and management of the Tasmanian recreational fishery more generally.

Objectives

1. Develop a program for ongoing collection of biological samples and data of key range-shifting fish species using citizen science initiatives engaging with the recreational fishing community.
2. Develop geographically discrete life-history parameters for key range-shifting fish species in Tasmania to inform management decisions.
3. Determine the diet composition of key range-shifting fish species to refine parameterisation of an ecosystem model.
4. Utilise the Atlantis ecosystem model framework to predict ecological impacts of increasing abundance of key range-shifting fish species in Tasmania.
5. Develop species distribution models that utilise oceanographic climate change projections to predict the future presence and persistence of the key target species in Tasmania.

Final report

ISBN: 978-1-922708-28-1
Author: Alexia Graba-Landry
Final Report • 2022-05-12 • 13.57 MB
2018-070-DLD.pdf

Summary

This work set out to quantify the biology and diet of three key range-shifting species in Tasmania with both recreational and commercial fishery value. The project was heavily reliant on engagement from the recreational fishing community and multiple citizen science initiatives, as well as historical data.

The information collected was used in modelling to predict how suitable habitats for each species may shift under future climate change projections. The work also indicated the potential changes to the ecosystem (such as food web) if these species’ ranges were to move.

Environment
PROJECT NUMBER • 2017-094
PROJECT STATUS:
COMPLETED

NCCP: Review of Carp control via commercial exploitation

The present study, undertaken by Charles Sturt University, was developed to investigate the potential for commercial, or subsidised, fishery exploitation to effectively control carp populations in Australia. Using published literature examples of fish (and other) vertebrate pest-removal...
ORGANISATION:
La Trobe University Mildura Campus

Informing the structural reform of South Australia's Marine Scalefish Fishery

Project number: 2017-014
Project Status:
Completed
Budget expenditure: $496,836.00
Principal Investigator: Jonathan Smart
Organisation: SARDI Food Safety and Innovation
Project start/end date: 30 Jun 2017 - 29 Jun 2020
Contact:
FRDC

Need

South Australia’s Marine Scalefish Fishery (MSF) is currently undergoing a strategic review with the principal aim of restructuring the fishery in order to ensure its long-term sustainability and economic viability. The heterogeneous mixture of participants, fishing devices, licence conditions and regulations associated with this fishery makes the tasks of administering and managing it extremely challenging. These complexities intertwined within a highly dynamic fleet that is capable of shifting fishing effort amongst species and regions often alters the emphasis of its overarching management. Industry and Government are working collaboratively to address the inherent complexities of the fishery through firstly developing a mechanism to rationalise the fleet, then reforming its overall structure, and ultimately refining its future management. In order to optimise this structural reform, it is necessary to disentangle and understand the fleet dynamics of this extremely complex fishery. This project aims to explore the implications of strategic management options (e.g. regionalisation, licensing, ITQ’s and ITE’s) on the future structure and viability of the MSF, from resource sustainability, economic and social perspectives.

Objectives

1. To review the structure and function of multi-species, multi-gear fisheries around the world.
2. To disentangle the complexities of the South Australian commercial Marine Scalefish Fishery to describe long-term spatio-temporal trends in the composition, dynamics and socio-economic performance of the fishing fleet
3. To evaluate the possible strategic management options such as regionalisation, licensing, ITQs and ITEs on the future structure and viability of South Australia’s MSF
4. To determine the biological, economic and social 'carrying capacity' of the MSF across key regions of the fishery.

Final report

ISBN: 978-1-876007-43-0
Authors: Jonathan Smart Mike Steer Fred Bailleul David Hall Ian Knuckey Anders Magnusson Julian Morison Jon Presser and Jacki Schirmer
Final Report • 2022-09-27 • 29.96 MB
2017-014-DLD.pdf

Summary

This study was undertaken by the South Australia Research and Development Institute (SARDI) in collaboration with PIRSA Fisheries and Aquaculture, BDO EconSearch, the Marine Fishers Association (MFA), Fishwell Consulting and University of Canberra. This project guided the reform of South Australia’s commercial Marine Scalefish Fishery (MSF) by providing scientific advice and analyses to underpin its implementation. The MSF is a multi-sector, multi-gear and multi-species fishery, making any management reform a complex and difficult process. Both the sustainability of key stocks and commercial fishery’s economic performance have been deteriorating over a 20-year period; significantly influenced by fishery overcapitalisation. Simply put, there were too many fishers and not enough fish to support a vibrant and sustainable commercial fishery. This was addressed through the three ‘pillars’ of the reform: regionalisation, unitisation and rationalisation. These pillars were reflected in the reform with: 1) the creation of four new zones of management; 2) implementation of individual transferable quotas (ITQs) for appropriate ‘Tier 1’ stocks; and 3) rationalisation of the commercial MSF fleet by removing one third of licences through a voluntary licence surrender program (VLSP). These pillars were supported by research on the biological, economic and social carrying capacity of the fishery. The reform was implemented on 1 July 2021 resulting in a fishery that has regional management with appropriate output controls and a reduced fleet size.

Industry
PROJECT NUMBER • 2017-013
PROJECT STATUS:
COMPLETED

Rebuilding Southern Rock Lobster stocks on the east coast of Tasmania: informing options for management

Understanding relationships between fisher behaviour, their expectations/aspirations, responses to changes in stock status and to management intervention is critical when implementing effective management strategies. This project aims to inform on the practical challenges to achieving the stock...
ORGANISATION:
University of Tasmania (UTAS)
Adoption
PROJECT NUMBER • 2020-056
PROJECT STATUS:
CURRENT

Evaluation of a smart-phone application to collect recreational fishing catch estimates, including an assessment against an independent probability based survey, using South Australia as a case study

Information on recreational catch and effort is becoming increasingly important to inform fishery stock assessment and the sustainable management of fisheries resources. As smartphone applications ('apps') become more sophisticated and widely available, they are increasingly being used to record...
ORGANISATION:
University of Adelaide
Industry
PROJECT NUMBER • 2015-239
PROJECT STATUS:
COMPLETED

Oysters Australia IPA: Pacific Oyster Mortality Syndrome - resistant Oyster breeding for a sustainable Pacific Oyster Industry in Australia

This report describes selective breeding research and extension conducted by Australian Seafood Industries Pty Ltd (ASI) to assist the Pacific Oyster industry’s recovery from an outbreak of Pacific Oyster Mortality Syndrome (POMS) in Tasmania in 2016. The report also describes research to...
ORGANISATION:
Australian Seafood Industries Pty Ltd (ASI)
Blank
PROJECT NUMBER • 2018-197
PROJECT STATUS:
COMPLETED

Developing FRDC’s 2020-2025 RD&E Plan

This report covers the second of two CSIRO contributions to the project FRDC 2018-197. This project was reviewing FRDC research objectives through a process that developed alternative scenarios of possible futures relevant to Australian fisheries. Discussed here is the development of a...
ORGANISATION:
Fisheries Research and Development Corporation (FRDC)
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