The Amphipod Gammarus Fossarum Koch (Crustacea) as intermediate Host for some Helminth Parasites, with Notes on their Occurrence in the Final Host

Abstract

Monthly samples of Gammarus fossarum have been taken in the Rhône river system near Lyon, to determine the size composition and reproductive activity throughout the year. The acanthocephalan parasites of this gammarid species were also regularly collected. Furthermore, the intestinal tracts of a number of fishes (amongst others Thymallus thymallus ), feeding mainly on Gammaridae, have been investigated for the presence of helminth parasites.