[Tetraonchus alaskensis Price, 1937 and its epizootic role].


Mortality of pelyad (Coregonus peled) caused by Tetraonchus alaskensis took place in winter 1973 in the Voikara and Syn rivers (the Ural tributaries of the Lower Ob) during anadromous and catadromous migrations. The highest infection rate was observed in older fished. Up to 2330 specimens of the parasite were recorded from the gills of one pelyad. A low… (More)


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