The diet and infection of fishes in Cavendish Dock, Barrow‐in‐Furness

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Abstract
Some 934 fishes belonging to ten species were examined in Cavendish Dock, Walney Channel and in the River Duddon in order to study their diet and infection.Because of the limited number of food species occurring in Cavendish Dock, the diet of fishes examined is similar and composed of twelve different species.The diet of the flounders in Walney Channel differs markedly from those in the dock.The infection with parasitic worms of fishes in Cavendish Dock is lower than in other localities.Fifteen different species of parasitic worms belonging to Trematoda, Cestoda, Nematoda and Acanthocephala were recorded in fishes examined.Salinity of the dock water influences the composition of the diet and infection of fishes in Cavendish Dock. Raised temperature and salinity are artificially introduced by human activities, and beiig controllable, could serve for experimental ecological investigations in