Blar i SINTEF Open på forfatter "Bjørn, Pål Arne"
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Extent and ecological importance of escape through spawning in sea-cages for Atlantic cod
Uglem, Ingebrigt; Knutsen, Øyvind; Kjesbu, Olav Sigurd; Hansen, Øyvind J; Mork, Jarle; Bjørn, Pål Arne; Varne, Rebekka; Nilsen, Rune; Ellingsen, Ingrid H.; Dempster, Timothy David (Journal article; Peer reviewed, 2012-11-14)The culture of certain fish species to sizes at which they can reproduce has led to the escape of fertilised eggs or ‘escape through spawning’. To investigate the extent and ecological importance of spawning in sea-cages ... -
Net-biting and escape behaviour in farmed Atlantic cod Gadus morhua: effects of feed stimulants and net traits
Damsgård, Børge; Høy, Erik; Uglem, Ingebrigt; Hedger, Richard; Izquierdo-Gomez, David; Bjørn, Pål Arne (Journal article; Peer reviewed, 2012-09-25)reventing farmed fish from escaping sea cages is a major challenge for developing sustainable aquaculture practices. In this study, the individual behaviour of Atlantic cod Gadus morhua to inspect and bite the net was ... -
Proxy Measures of Fitness Suggest Coastal Fish Farms Can Act as Population Sources and Not Ecological Traps for Wild Gadoid Fish
Dempster, Timothy David; Sánchez-Jerez, Pablo; Fernandez-Jover, Damian; Bayle-Sempere, Just; Nilsen, Rune; Bjørn, Pål Arne; Uglem, Ingebrigt (Journal article; Peer reviewed, 2011-01-17)Background: Ecological traps form when artificial structures are added to natural habitats and induce mismatches between habitat preferences and fitness consequences. Their existence in terrestrial systems has been documented, ...