Warming oceans are changing Australia's fishing industry

phys.org | 7/11/2018 | Staff
chrismpotts (Posted by) Level 3
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A new United Nations report on fisheries and climate change shows that Australian marine systems are undergoing rapid environmental change, with some of the largest climate-driven changes in the Southern Hemisphere.

Reports from around the world have found that many fish species are changing their distribution. This movement threatens to disrupt fishing as we know it.

Change - Researchers - Managers - Fishers - Industry

While rapid change is predicted to continue, researchers and managers are working with fishers to ensure a sustainable industry.

Large climate-driven changes in species distribution and abundance are evident around the world. While some species will increase, global models project declining seafood stocks in tropical regions, where people can least afford alternative foods.

Concern - Seafood - Changes - UN - Food

The global concern for seafood changes led the UN Food and Agriculture Organisation (FAO) to commission a new report on the impacts of climate change on fisheries and aquaculture. More than 90 experts from some 20 countries contributed, including us.

The report describes many examples of climate-related change. For instance, the northern movement of European mackerel into Icelandic waters has led to conflict with more southerly fishing states, and apparently contributed to Iceland's exit from negotiations over its prospective European Union membership.

Changes - Abundance - Behaviour - Conflicts - Harvesting

Changes in fish abundance and behaviour can lead to conflicts in harvesting, as occurred in the Maine lobster fishery. Indirect effects of climate change, such as disease outbreaks and algal blooms, have already temporarily closed fisheries in several countries, including the United States and Australia.

All these changes in turn impact the people who depend on fish for food and livelihoods.

Chapter - Change - Region - Waters - Australia

The Australian chapter summarises the rapid ocean change in our region. Waters off southeastern and southwestern Australia are particular warming hotspots. Even our tropical oceans are warming almost twice as fast as the global average.

More than 100 Australian marine species have already begun to shift their distributions southwards. Marine heatwaves and other extreme events have harmed...
(Excerpt) Read more at: phys.org
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