Scientists have for the first time calculated the likely impact of climate change on the distribution of more than 1,000 species of fish around the globe.
Published this week in the journal 'Fish and Fisheries', the research was carried out by scientists at the University of East Anglia (UEA), the Sea Around Us project at the University of British Columbia (UBC) and Princeton University. The findings will also be presented at the AAAS Annual Meeting in Chicago on Friday February 13 by the paper's lead author Dr William Cheung of UEA's School of Environmental Sciences.
It has long been known that ocean conditions such as temperature and current patterns are changing due to climate change, and that these changes directly affect the numbers and locations of different species of fish.
Dr Cheung and his team have developed a new computer model that predicts for the first time exactly what might happen under different climate scenarios to the distribution of commercially important species – including cod, herring, sharks, groupers and prawns.
Current conservation and fisheries management measures do not account for climate-driven species distribution shifts and it is hoped this research will change this.
The disturbing results demonstrate for the first time:
"Our research shows that the impact of climate change on marine biodiversity and fisheries is going to be huge," said Dr Cheung. "We must act now to adapt our fisheries management and conservation policies to minimise harm to marine life and to our society.
"For example, we can use our knowledge to improve the design of marine protected areas which are adaptable to changes in distribution of the species."
He said the next step would be for the research to focus on the socio-economic impact of the predicted scenarios.
'The capacity and likelihood of climate change adaptation in the world's fisheries' by William Cheung (UEA), Vicky Lam (UBC), Jorge Sarmiento (Princeton), Kelly Kearney (Princeton), Reg Watson (UBC) and Daniel Pauly (UBC) is due to be published on February 13 2008 in 'Fish and Fisheries'.
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