24/09/13: Salmon stress; climate change and fish farming; addressing sustainability in aquaculture

Stress might be the reason why losses is salmon aquaculture are high and why large numbers of  salmon do not return to their breeding ground to spawn, according to research by Uni Research AS.

The team researched new ways to evaluate salmon's mental robustness, their ability to learn and react to a new environment.

They found that salmon exposed to mild chronic stressors such as being transferred into new tanks can limit their ability to deal with new situations.

It's hoped that being able to identify what causes salmon stress will help improve management to 
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An increase in aquaculture and marine protected areas could help Pacific countries in the Coral Triangle adapt to climate change according to a report by the Asian Development Bank and the International Food Policy Research Institute.

The report found that domestic fish production is likely to be slow until 2050 due to climate change.

It also warns that Pacific coral triangle countries could become net importers of fish unless there are significant adaptation measures.

The findings were launched at a workshop assessing development strategies in response to climate change in Vanuatu.
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Aquaculture often comes under fire for its sustainability credentials so it is great to find an article which looks at ways the industry is addressing the issue.

This article on GreenBiz highlights five different projects or companies that are cleaning up fish farming.

They include innovative technology, new species and industry-led sustainability drive. Take a look.
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English: Illustration of various salmon (Photo credit: Wikipedia)