Eroded swimmeret syndrome, a novel disease of the signal crayfish

Crayfish researchers at the University of Eastern Finland Department of Biology have discovered, together with Swedish colleagues, a new disease plaguing female signal crayfish. As the name suggests, eroded swimmeret syndrome (ESS) destroys the swimmerets of female crayfish, weakens their reproductive ability and can increase the mortality of mother crayfish. In Finland and Sweden, the observed declines and sudden plunges in natural populations of signal crayfish can, to some extent, be explained by eroded swimmeret syndrome.

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