8 results

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.

Adoption
PROJECT NUMBER • 2018-191
PROJECT STATUS:
COMPLETED

Travel bursary: Symposium on Responsible Fishing Technology for Healthy Ecosystems and Clean Environment

The Award recipient participated in the annual ICES-FAO Fishing Technology and Fish Behaviour Working Group (ICES-FAO WGFTFB) meeting on April 8 - 12, 2019. This meeting was hosted by Shanghai Ocean University, Shanghai, China, although each year the meeting is held in a different location. The...
ORGANISATION:
Fisheries Research and Development Corporation (FRDC)
Industry
PROJECT NUMBER • 2020-055
PROJECT STATUS:
COMPLETED

Australian Society for Fish Biology: Scientific networking, early career development, international engagement and 50th celebrations

The Australian Society for Fish Biology (ASFB) was founded in 1971 and is a professional, independent, non-profit, non-commercial and non-aligned organisation. The Society’s objectives are to promote research, education and management of fish and fisheries and to provide a forum for the...
ORGANISATION:
Australian Society For Fish Biology Inc
Environment
PROJECT NUMBER • 2019-091
PROJECT STATUS:
COMPLETED

Non-Market Impact Valuation for Fisheries RD&E (Phase I)

This report, titled ‘Non-Market Impact Valuation for Fisheries RD&E – Phase I: An Investigation and Gap Analysis of Non-Market Impact Valuation Studies for Australian Fisheries and Aquaculture RD&E’, presents the findings of the first stage of a process to assess and...
ORGANISATION:
Agtrans Research
Blank
PROJECT NUMBER • 2017-214
PROJECT STATUS:
COMPLETED

Comparative evaluation of Integrated Coastal Marine Management in Australia - Workshop

The need for Integrated Management (IM) of diverse marine activities is increasing, but there has been no agreed IM framework. In 2017 and 2018, a team of researchers collaborated to develop a framework for implementation and a ‘lens’ for evaluation of IM....
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Environment
PROJECT NUMBER • 2017-082
PROJECT STATUS:
COMPLETED

Ensuring monitoring and management of bycatch in Southern Rock Lobster fisheries is best practice

Bycatch is an important issue in fisheries worldwide, with the impacts of fishing activities on non-targeted species and the wider marine environment receiving increasing public attention. Issues such as the potential wastage of resources through discarding of unwanted catch, ecological impacts on...
ORGANISATION:
University of Tasmania (UTAS)