Grafham shrimps

Trout Fisherman (UK) - - Tactics -

Dikerogam­marusvil­lo­sus was dis­cov­ered at Grafham in 2010. Th­ese ‘killer shrimps’ hail from East­ern Europe and mea­sure about 1.2in. Ag­gres­sive, fast grow­ing and fast breed­ing they’re the per­fect invader feed­ing on just about any­thing. Tol­er­ant of aw­ful con­di­tions they’ve so far spread to Eglwys Nun­ydd near Port Talbot and the Nor­folk Broads.

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