Feeding behaviour and diet of goosanders (Mergus merganser) in relation to salmonid seaward migrationJohn Atle Kålås, Tor G. Heggberget, Pål Arne Bjørn and Ole ReitanAquat. Living Resour., 6 1 (1993) 31-38DOI: https://doi.org/10.1051/alr:1993003
