Alien species Crustaceans Amphipoda [WoRMS]; Dikerogammarus villosus (Sowinsky, 1894) [WoRMS] United Kingdom, British Isles [Marine Regions] Brackish water; Fresh water
Author keywords
amphipod; crustacean; Dikerogammarus villosus; Grafham Water; UK; alien;first record
The Ponto-Caspian amphipod was found both in the margins and open water areas of Grafham Water, a large reservoir in Cambridgeshire, U.K., in September 2010. Both adults and juveniles were present in large numbers and were most frequent in the boulder/cobble areas dominating the margins of the reservoir. Precopula pairs were also evident, as were egg bearing females.
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