title: Occurrence of the metacercariae of Cotylurus erraticus (Rudolphi, 1809) Szidat, 1928 (Digenea: Strigeidae) in brown trout Salmo trutta L., and rainbow trout S. gairdneri Richardson, 1836, from Hanningfield Reservoir, Essex.
mesh_terms: D000367:Age Factors; D000818:Animals; D004739:England; D005260:Female; D005393:Fish Diseases / Q000453:epidemiology*; D008297:Male; D012487:Salmonidae; D012621:Seasons; D014201:Trematode Infections / Q000453:epidemiology / Q000662:veterinary*