Gyrodactylus salaris Malmberg, 1957 (Monogenea, Gyrodactylidae) spreads further – a consequence of rainbow trout farming in Northern Russia

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Haakon Hansen, Evgeny Ieshko, Johannes Rusch, Igor Samokhvalov, Vera Melnik, Nikolai Mugue, Sergey Sokolov, Aleksey Parshukov