The threat to fisheries and aquaculture from climate change

This short briefing document by the World Fish Centre, "The threat to fisheries and aquaculture from climate change", is very useful with some informative maps and tables of summary information on the impacts of climate change on capture fisheries and aquaculture both in marine and freshwater environments. For example, it reports that Lake Tanganyika provides 25-40% of animal protein for the countries which surround it and that temperature driven stratification has reduced planktivorous fish productivity by an estimated 30%.

The key messages from the report are below.

• Fish provide essential nutrition and income to an ever-growing number of people around the world, especially where other food and employment resources are limited. Many fisherfolk and aquaculturists are poor and ill-prepared to adapt to change, making them vulnerable to impacts on fish resources.
• Fisheries and aquaculture are threatened by changes in temperature and, in freshwater ecosystems, precipitation. Storms may become more frequent and extreme, imperilling habitats, stocks, infrastructure and livelihoods.
• Greater climate variability and uncertainty complicate the task of identifying impact pathways and areas of vulnerability, requiring research to devise and pursue coping strategies and improve the adaptability of fishers and aquaculturists.
• Fish can provide opportunities to adapt to climate change by, for example, integrating aquaculture and agriculture, which can help farmers cope with drought while boosting profits and household nutrition. Fisheries management must move from seeking to maximize yield to increasing adaptive capacity.

This 2007 report is attached below.