147 results

El-Nemo SE: risk assessment of impacts of climate change for key species in South Eastern Australia

Project number: 2009-070
Project Status:
Completed
Budget expenditure: $140,163.66
Principal Investigator: Gretta T. Pecl
Organisation: University of Tasmania (UTAS)
Project start/end date: 21 Dec 2009 - 30 Oct 2010
Contact:
FRDC

Need

Climate change is expected to alter physical and chemical oceanographic conditions and processes around Australia, yet the influence this could have on the distributions of various marine species is still relatively unknown. The marine waters of South Eastern Australia are expected to be significantly affected by climate change, experiencing the greatest climate-driven changes in the southern hemisphere over the next century. The impacts and opportunities that will result from these changes will depend, in part, on how well the fisheries and aquaculture sectors and their managers respond to these challenges. A sound risk-based approach to informing both management arrangements and decisions by the sectors will be critical for optimizing outcomes. It is essential that the potential impacts of climate change on key resources are assessed and effectively communicated to support the development of policies that allow industry to minimize adverse effects by optimizing adaptation responses (e.g. by providing flexible management arrangements) and seizing opportunities as they arise (e.g. for species where productivity increases).

This project has been identified as a clear and immediate need through the SEAP Plan (draft) and also establishes a platform of baseline information from which we can start to address several key priority areas identified in the Draft Marine National Adaptation Research Plan (NARP). Priorities identified in the draft NARP include 1/ Which farmed species in which locations are most likely to be impacted as a result of climate change?, and for fisheries 2/ Which fishery stocks, in which locations, are most likely to change as a result of climate change? What will those changes be (e.g., in distribution, productivity) and when are they likely to appear under alternative climate change scenarios? Clearly, comprehensive and synthesised information on the sensitivities and tolerances of key species are the first steps required to address these priorities.

Objectives

1. Identify the life history stages, habitats and aquaculture systems of key species that may be impacted by climate change
2. Identify the physical and chemical parameters that may determine the potential impacts of climate change on key species
3. Conduct a preliminary risk assessment of each key species to the potential impacts of climate change
4. Highlight what additional information on the tolerances and sensitivities will be needed to develop bioclimatic envelope models for key species

Development of an integrated fisheries management model for King George whiting (Sillaginodes punctata) in South Australia

Project number: 1995-008
Project Status:
Completed
Budget expenditure: $461,163.00
Principal Investigator: Anthony J. Fowler
Organisation: SARDI Food Safety and Innovation
Project start/end date: 29 Dec 1995 - 30 Jun 2001
Contact:
FRDC

Objectives

1. To produce an age-structured, spatial-temporal fishery model for King George whiting in South Australia based on a comprehensive understanding of its biology, life-history and genetics as well as an analysis of the fishery. This model will be used as a stock assessment tool to assess management options.
2. To implement a biological research programme to facilitate objective 1/, including: a/. determination of site-specific age-structures based on ageing fish using otoliths, to be used for estimation of demographic parameters
b/. completion of the understanding of the life-history including reproductive, early and adult biological information
c/. assessment of genetic variation amongst populations over two spatial scales (amongst states and amongst regions within SA).
3. To review current commercial catch and effort information to: a/. identify the value of such data for estimating population abundance
b/. continue an on-going assessment of impacts of technological advances in fishing equipment on catch and effort in the commercial sector of the fishery
c/. compare commercial catch with that from recreational catch information currently being collected in SA using creel surveys (FRDC 92/81).

Guide

Author: Anthony Fowler
Guide • 7.64 MB
1995-008-PDT-1.pdf

Summary

The King George Whiting Simulator (WhitSim) is a simulation version of the Whiting Estimator (WhitEst) encased inside a graphical user interface (GUI) that includes geographical information systems (GIS). WhitSim provides the ability to simulate various management strategies and parameter scenarios and interrogate results of the simulation via in-built statistical, curve fitting and indicator analysis modules.

Final Report • 2000-08-31 • 11.76 MB
1995-008-DLD.pdf

Summary

King George whiting (Sillaginodes punctata) remains a prime target species of the marine scalefish fishery of South Australia. Levels of fishing mortality are high on inshore populations throughout the fishery which has caused concern about the level of egg production. This prompted the need for a comprehensive stock assessment for this fishery. However, complicating this task is the fact that the life-history incorporates an obligate migratory step where fish move from shallow, inshore areas where they are heavily targeted, to deeper, more exposed places where the spawning populations occur.

Industry
PROJECT NUMBER • 2016-146
PROJECT STATUS:
COMPLETED

Understanding factors influencing undercaught TACs, declining catch rates and failure to recover for many quota species in the Southern and Eastern Scalefish and Shark Fishery

Concerns about the ecological and economic sustainability of Australia’s Southern and Eastern Scalefish and Shark Fishery (SESSF) prompted major structural readjustment of the fishery in 2006 that significantly reduced the number of operators in demersal trawl, Danish seine and gill net...
ORGANISATION:
Fishwell Consulting Pty Ltd
Environment
PROJECT NUMBER • 2003-072
PROJECT STATUS:
COMPLETED

Trophodynamics of the GAB: assessing the need for an ecological allocation in the SA pilchard fishery

Shelf waters off southern Australia support the world’s only northern boundary current ecosystem. Although there are some indications of intense nitrate enrichment in the eastern Great Australian Bight (GAB) arising from upwelling of Subantarctic Water, the biological consequences of these...
ORGANISATION:
SARDI Food Safety and Innovation
SPECIES
Environment
PROJECT NUMBER • 2018-034
PROJECT STATUS:
COMPLETED

Effects of climate change and habitat degradation on Coral Trout

Fishes are at considerable risk from changing environmental conditions because they are, for most part, unable to regulate their body temperature. Exposure to high temperatures may therefore compromise critical biological functions, resulting in reduced performance, fitness and ultimately survival....
ORGANISATION:
James Cook University (JCU)
Environment
PROJECT NUMBER • 2017-047
PROJECT STATUS:
COMPLETED

Understanding environmental and fisheries factors causing fluctuations in mud crab and blue swimmer crab fisheries in northern Australia to inform harvest strategies

This project investigated relationships between environmental factors and harvests of crabs in the Gulf of Carpentaria (GoC), northern Australia. Desktop correlative analyses clearly indicated that recent fluctuations in the catches of Giant Mud Crabs in the GoC are most likely driven by...
ORGANISATION:
Department of Primary Industries (QLD)
Industry
PROJECT NUMBER • 2018-194
PROJECT STATUS:
COMPLETED

Forecasting spatial distribution of Southern Bluefin Tuna habitat in the Great Australian Bight – updating and improving habitat and forecast models

This project was a collaboration between CSIRO, the Australian Southern Bluefin Tuna Industry Association (ASBTIA) and the Australian Bureau of Meteorology (BoM). The project aim was to update work done as part of FRDC Project 2012/239 “Forecasting spatial distribution of Southern Bluefin Tuna...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Environment
PROJECT NUMBER • 2003-021
PROJECT STATUS:
COMPLETED

Effects of Trawling Subprogram: mapping bycatch & seabed benthos assemblages in the GBR region for environmental risk assessment & sustainable management of the Queensland east coast trawl fishery

The Great Barrier Reef is a unique World Heritage Area of national and international significance. As a multiple use Marine Park, activities such as fishing and tourism occur along with conservation goals. Managers need information on habitats and biodiversity distribution and risks to ensure these...
ORGANISATION:
CSIRO Oceans and Atmosphere Crawley
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