Browsing Fisken og havet (1958- ) by Author "Skaala, Øystein"
Now showing items 1-7 of 7
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A summary of 20 years (1998-2017) of scientific work on genetics and survival in anadromous brown trout (Salmo trutta L) and Atlantic salmon (S. salar L) in the river Guddalselva western Norway
Skaala, Øystein (Fisken og Havet;Nr. 5 - 2017, Research report, 2017) -
Betydninga av lange tidsseriar i forvaltningsrelatert havbruksforsking: Sjøaure i Hardangerfjorden - Årlege svingingar i antal og vekst hos parr og vekst hos postsmolt
Borgstrøm, Reidar; Skaala, Øystein (Fisken og havet, Research report, 1999)The report includes studies on numbers, growth and survival of seatrout and salmon par in River Øyre, Kvinnherad from 1988 to 1998. The abundance of -
Evaluering av effekten på fiskeproduksjonen i Guddalselva, Kvinnherad (Hordaland)
Skaala, Øystein; Borgstrøm, Reidar; Fjellheim, A.; Fossheim, T. (Fisken og havet, Research report, 2002)The project is a collaboration between the Institute of Marine Research, the Environmental programme under the Norwegian Electricity Directorate, the Directorate for Nature Management, the Fisheries Directorate, the ... -
Genetiske metoder for bestandsidentifisering - potensial og praktisk bruk for forvaltningen
Dahle, Geir; Jørstad, Knut Eirik; Glover, Kevin A.; Skaala, Øystein; Svåsand, Terje (Fisken og havet, Research report, 2006)There is an increasing demand for management based on surveillance and ecosystem knowledge, requiring more scientific data, and molecular genetic methods have been highlighted as the best tool to increase our knowledge ... -
Har langvarig fiskeutsetting påverka auren i Halne og Bjornesfjorden?
Tysse, Åsmund; Skaala, Øystein; Jenssen, Rolf Y. (Fisken og havet, Research report, 2004)In lake Halne and Bjornesfjord, brown trout has been stocked intensively for 30 years. To investigate the effects on wild gene pools, samples of trout were collected, and individuals classified as stocked, or wild naturally ... -
Hardangerfjorden - produksjon av laksefisk og effekter på de ville bestandene av laksefisk
Otterå, Håkon; Skilbrei, Ove; Skaala, Øystein; Boxaspen, Karin; Aure, Jan; Taranger, Geir Lasse; Ervik, Arne; Borgstrøm, Reidar (Fisken og havet, Research report, 2004)Wild populations of salmon and seatrout in the Hardanger Fjord show significant declines in recent years.The report also describes the hydrographical conditions and the aquaculture production of salmonids in the fjord. The ... -
Rømming av laks og regnbueørret - konsekvenser på ville bestander
Skilbrei, Ove; Skaala, Øystein; Taranger, Geir Lasse; Otterå, Håkon (Fisken og havet, Research report, 2003)It is the view of the Institute of Marine Research that escapements of farmed salmon and rainbow trout may represent a negative environmental effect on the wild salmon populations. The extent and significance must be ...