British Snails, Shellfish & Seaweeds Shifting North Rapidly - BBC

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Britain's barnacles, limpets and seaweeds are moving north and east in response to climate change. A four-year research project, funded by a number of government agencies, mapped 57 species across the British Isles.

Comparing current sightings with data from 50 years ago shows that many have moved, some by over 100 miles (150km). The finding follows other studies showing that many marine creatures including some fish and plankton, but not all, are shifting northwards.

The project, called Marine Biodiversity and Climate Change (MarClim), is co-ordinated by the Marine Biological Association (MBA) based in Plymouth.

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We've seen many of these species moving from the areas they are normally found, mainly due to rising sea surface temperatures," said Larissa Naylor of the Environment Agency. "The creatures are moving to find more suitable homes in new locations.
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http://news.bbc.co.uk/2/hi/science/nature/6194959.stm