Yu. Yu. Barskaya

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The bullhead (Cottus gobio L.) was for the first time recorded in the Utsjoki River (70° N, 27° E), a large tributary of the Teno River (Northern Finland), in 1979 and in subsequent years spread widely within this lake-river system. The studies of 1993 and 2007 allowed the general trends of changes in the bullhead mass parasitic species composition and(More)
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