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Swedish Crayfish Under Threat From Plague

Published fredag 22 oktober 2004 kl 12.32

There are fears that Sweden’s stocks of Crayfish may once again be under threat from a deadly plague that could be spreading out of control.

Researchers at the National Board of Fisheries have for the past five years been worried about the spread of the fungal disease, which has been present in Swedish waters to varying extents for almost a century.

But their fears are now growing as people illegally implant an imported variety of crayfish, called signal crayfish which carry the plague, into lakes that are home to Sweden’s domestic variety, called noble crayfish.

Once a lake is infected, it wipes out all the noble crayfish....bad news when you consider that Swedes eat more crayfish than anybody else in the world.

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