[Effect of hydraulic structures and water storage basins on the parasitic fauna of the Atlantic salmon (Salmo salar)].
157 specimens of Salmo salar L. belonging to different age groups were examined in the region of the Lower-Tuloma hydropower-station. 13 species of parasites (of them 5 are freshwater) were found in anadromous migrants. The character of the parasite fauna and the structure of fishes' scale have shown that some salmons cannot get the fishrunning over and stay in summer months under the damb where become infected with freshwater parasites. 19 species of parasites (of them 14 are freshwater) were found in catadromous migrants. These fishes cannot penetrate through the damb of hydroconstruction beyond the limits of the reservoir and pass here to an active feeding that is indicated by a rich composition of freshwater parasite fauna. The infection of adult salmons with plerocercoids of Triaenophorus crassus during the spawning migration points to the presence of trienophorosis nidus in this water reservoir. Parasite fauna of salmon smolt, represented by 7 species, is not affected by the water reservoir and hydroconstruction. The smolt does not stay too long in the reservoir and early stages of its seaward migration do not coincide with the termination of the development of the invasional stages of procercoids of Pseudophylidae.
D000818:Animals; D001110:Arctic Regions; D011210:Power Plants; D012474:Salmon / Q000469:parasitology*; D014586:USSR; D014881:Water Supply
Vliianie gidrosooruzheniĭ i vodokhranilishch na parazitofaunu atlanticheskoĭ lososia (Salmo salar).