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Chapter 16: Climate change impacts, vulnerabilities and adaptations: Australian marine fisheries

Citation

Hobday, AJ and Pecl, GT and Fulton, B and Pethybridge, H and Bulman, C and Villanueva, C, Chapter 16: Climate change impacts, vulnerabilities and adaptations: Australian marine fisheries, Impacts of climate change on fisheries and aquaculture: synthesis of current knowledge, adaptation and mitigation options. Technical Paper No. 627, FAO Fisheries and Aquaculture, Rome (2018) [Government or Industry Research]


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Abstract

Key messages

• There are long-term trends in the temperature and currents of the oceans around Australia that are already leading to substantial changes in associated marine ecosystems; these trends are projected to continue and to have greater impact in the future.

• Temperatures are warming at almost three and four times the global average off Southwest and Southeast Australia respectively; ecological and fishery impacts are compounded in these locations as the currents are also changing.

• There have been extensive climate-related changes in distribution of sea urchins, intertidal molluscs, seaweeds and many coastal fish species over the last few decades.

• Long-term change and extreme events, such as marine heatwaves and cyclones, have impacted commercial fish habitat such as mangroves, kelp beds and coral reefs, and reduced populations of important commercial species. The coral reef systems of Australia have experienced severe and extensive bleaching, multiple times and over large areas, in recent years.

• Multiple assessment approaches suggest that invertebrates are most at risk from climate change, and pelagic fishes the least. Australia’s most valuable fisheries target invertebrate species.

• Adaptation options are being considered by fishery managers in Australia, particularly around access rights and spatial management. Although research to underpin adaptation efforts is underway, much remains to be done.

Item Details

Item Type:Government or Industry Research
Keywords:climate change impacts, Australian marine fisheries, adaptation
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fisheries Sciences not elsewhere classified
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Wild Caught
Objective Field:Fisheries - Wild Caught not elsewhere classified
UTAS Author:Hobday, AJ (Dr Alistair Hobday)
UTAS Author:Pecl, GT (Professor Gretta Pecl)
UTAS Author:Fulton, B (Dr Elizabeth Fulton)
UTAS Author:Villanueva, C (Dr Cecilia Villanueva)
ID Code:127368
Year Published:2018
Deposited By:Fisheries and Aquaculture
Deposited On:2018-07-24
Last Modified:2018-07-24
Downloads:0

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