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Observations of pathological changes on the skin (furunculosis) of salmon and sea trout spawners caught in Polish rivers and cultivated In ponds were continued in 2009. In comparison to the prevalence of this disease in 2007-2008, pathological changes were noted among fish from fewer rivers, while the percentage of fish infected with disease was significantly lower. Ichthyopathological tests were...
We investigated the growth of hydromycoflora on the eggs of sea trout (Salmo trutta morpha trutta L.) in river water of different eutrophication levels. The eggs investigated were collected from 42 females caught during their spawning migration in the Parsęta River (west Pomerania), in Świbno on the Vistula River, and from those bred in fresh water in hatcheries at Miastko. The water for the experiments...
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