Blar i Fisken og havet (1958- ) på forfatter "Otterå, Håkon"

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    • 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 ...

    • Havbeite med torsk i Hordaland : sluttrapport 

      Otterå, Håkon; Kristiansen, Tore S.; Svåsand, Terje; Borge, Asbjørn; Storaker, Arne; Pedersen, Jan Per; Paulsen, Ole Ingar; Nævdal, Gunnar; Thorkildsen, Solveig (Fisken og havet, Research report, 1997)
      Approximately 250,000 reared, juvenile cod have been released in the Øygarden area, western Norway, during the period 1991 to 1996. An additional 10,000 juveniles have been released at Sotra, and 45,000 at Heimarkspollen, ...

    • Kvalitet på sei ved oppdrettsanlegg – ein eksperimentell studie 

      Otterå, Håkon; Karlsen, Ørjan; Slinde, Erik; Olsen, Rolf Erik (Fisken og havet, Research report, 2008)
      Wild caught saithe were fed on commercial diets made for salmon or cod from October 2006 to June 2007. Several flesh quality measurements were made. Growth turned out to be very low for a part of the population, while ...

    • 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 ...