Blar i Brage IMR på forfatter "Ørjebu, Alfred"
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Recent studies of the distribution and abundance of grey seals (Halichoerus grypus) in north Norway, and their possible influence on parasitic infestations in fish
Haug, Tore; Henriksen, Gunnar; Nilssen, Kjell Tormod; Ørjebu, Alfred (ICES CM Documents;1991/N:2, Working paper, 1991)Distributions of grey seals Halichoerus grypus were studied during aerial and ground surveys in North Norway. Surveys were conducted from Lofoten to the Soviet border during the moult (March-April, Finnmark) and breeding ...