Blar i Brage IMR på forfatter "Skaala, Øystein"
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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 ... -
Hardangerfjorden under lupa
Skaala, Øystein (Chronicle, 2008-06-10) -
Hardangerfjorden under lupa; Interaksjonar mellom økosystem, akvakultur og bereevne og klimaendringar
Skaala, Øystein; Sjøtun, Kjersti; Husa, Vivian; Falkenhaug, Tone; Kvamme, Cecilie; Bjelland, Otte; Asplin, Lars; Buhl-Mortensen, Pål; Hansen, Pia Kupka; Ervik, Arne (Havforskningstema;Nr.1-2009, Working paper, 2009) -
Identification of quantitative genetic components of fitness variation in farmed, hybrid and native salmon in the wild
Besnier, Francois; Glover, Kevin; Lien, Sigbjørn; Kent, Matthew Peter; Hansen, Michael Möller; Shen, Xia; Skaala, Øystein (Journal article; Peer reviewed, 2015-03-18)Feral animals represent an important problem in many ecosystems due to interbreeding with wild conspecifics. Hybrid offspring from wild and domestic parents are often less adapted to local environment and ultimately, can ... -
Inferring Atlantic salmon post-smolt migration patterns using genetic assignment
Harvey, Alison C.; Sanchez, Maria Quintela; Glover, Kevin; Karlsen, Ørjan; Nilsen, Rune; Skaala, Øystein; Sægrov, Harald; Kolås, Steinar; Knutar, Sofie; Wennevik, Vidar (Journal article; Peer reviewed, 2019)Understanding migratory patterns is important for predicting and mitigating unwanted consequences of environmental change or anthropogenic challenges on vulnerable species. Wild Atlantic salmon undergo challenging migrations ... -
Introgression of domesticated salmon changes life history and phenology of a wild salmon population
Besnier, Francois; Ayllon, Fernando; Skaala, Øystein; Solberg, Monica Favnebøe; Fjeldheim, Per Tommy; Andersen, Kaja Christine; Knutar, Sofie; Glover, Kevin Alan (Peer reviewed; Journal article, 2022)The release of domesticated conspecifics into the natural environment, whether deliberate or accidental, has the potential to alter the genetic integrity and evolutionary trajectory of wild populations. This widespread ... -
Introgression of domesticated salmon changes life history and phenology of a wild salmon population
Besnier, Francois; Ayllon, Fernando; Skaala, Øystein; Solberg, Monica; Fjeldheim, Per Tommy; Andersen, Kaja Christine; Knutar, Sofie; Glover, Kevin A. (Dataset, 2022)This is the dataset used in Besnier et al. study "Introgression of domesticated salmon changes life history and phenology of a wild salmon population", published in Evolutionary Application. -
Judging a salmon by its spots: Environmental variation is the primary determinant of spot patterns in Salmo salar
Jørgensen, Katarina Mariann; Solberg, Monica Favnebøe; Besnier, Francois; Thorsen, Anders; Fjelldal, Per Gunnar; Skaala, Øystein; Malde, Ketil; Glover, Kevin (Journal article; Peer reviewed, 2018)In fish, morphological colour changes occur from variations in pigment concentrations and in the morphology, density, and distribution of chromatophores in the skin. However, the underlying mechanisms remain unresolved in ... -
Lakselus og rømt oppdrettslaks
Skaala, Øystein; Borgstrøm, Reidar (Chronicle, 2011-07-25) -
Lakselus – kan vi avle fram en resistent laks?
Glover, Kevin A.; Storset, Arne; Nilsen, Frank; Skaala, Øystein (Havforskningsnytt, Working paper, 2005) -
Large-effect loci mediate rapid adaptation of salmon body size after river regulation
Jensen, Arne Johan; Hagen, Ingerid Julie; Czorlich, Yann; Bolstad, Geir Hysing; Bremset, Gunnbjørn; Finstad, Bengt; Hindar, Kjetil; Skaala, Øystein; Karlsson, Sten (Peer reviewed; Journal article, 2022)Understanding the potential of natural populations to adapt to altered environments is becoming increasingly relevant in evolutionary research. Currently, our understanding of adaptation to human alteration of the environment ... -
Large-effect loci mediate rapid adaptation of salmon body size after river regulation
Jensen, Arne Johan; Hagen, Ingerid Julie; Czorlich, Yann; Bolstad, Geir Hysing; Bremset, Gunnbjørn; Finstad, Bengt; Hindar, Kjetil; Skaala, Øystein; Karlsson, Sten (Peer reviewed; Journal article, 2022)Understanding the potential of natural populations to adapt to altered environments is becoming increasingly relevant in evolutionary research. Currently, our understanding of adaptation to human alteration of the environment ... -
Long-term monitoring of a brown trout (Salmo trutta) population reveals kin-associated migration patterns and contributions by resident trout to the anadromous run
Duval, Eloïse; Skaala, Øystein; Quintela, María; Dahle, Geir; Delaval, Aurelian; Wennevik, Vidar; Glover, Kevin A.; Hansen, Michael M. (Dataset, 2021)This is the final dataset used in the Duval et al. (in review) study “Long-term monitoring of a brown trout (Salmo trutta) population reveals kin-associated migration patterns and contributions by resident trout to the ... -
Long-term monitoring of a brown trout (Salmo trutta) population reveals kin-associated migration patterns and contributions by resident trout to the anadromous run
Duval, Eloïse; Skaala, Øystein; Sanchez, Maria Quintela; Dahle, Geir; Delaval, Aurelien Nicolas; Wennevik, Vidar; Glover, Kevin Alan; Hansen, Michael Möller (Peer reviewed; Journal article, 2021)In species showing partial migration, as is the case for many salmonid fishes, it is important to assess how anthropogenic pressure experienced by migrating individuals affects the total population. We focused on brown ... -
Major histocompatibility complex (MHC) variation and susceptibility to the sea louse Lepeophtheirus salmonis in Atlantic salmon Salmo salar
Glover, Kevin A.; Grimholt, Unni; Bakke, H.G.; Nilsen, Frank; Storset, Arne; Skaala, Øystein (Journal article; Peer reviewed, 2007-06-07)The relationship between genetic variation in major histocompatibility complex (MHC) Class I and II genes and susceptibility to sea lice Lepeophtheirus salmonis (Krøyer) in Atlantic salmon Salmo salar (L.) was studied ... -
Merking av oppdrettslaks - kva no?
Skaala, Øystein (Havforskningsnytt, Working paper, 2005) -
Microsatellite DNA used for parentage identification of partly digested Atlantic salmon (Salmo salar) juveniles through non-destructive diet sampling in salmonids
Skaala, Øystein; Glover, Kevin A.; Barlaup, Bjørn T.; Borgstrøm, Reidar (Journal article; Peer reviewed, 2013-10-15)Predation during early life history is an important component of fitness in salmonids. Farmed Atlantic salmon display lower survival in the wild in comparison to wild salmon; however, the underlying mechanisms remain ... -
Migration of Atlantic salmon post-smolts in a fjord with high infestation pressure of salmon lice
Halttunen, Elina; Gjelland, Karl Øystein; Glover, Kevin; Johnsen, Ingrid Askeland; Serra-Llinares, Rosa-Maria; Skaala, Øystein; Nilsen, Rune; Bjørn, Pål Arne; Karlsen, Ørjan; Finstad, Bengt; Skilbrei, Ove Tommy (Peer reviewed; Journal article, 2018)Understanding Atlantic salmon Salmo salar post-smolt coastal migration behaviour is crucial for predicting their exposure to ecological challenges such as the parasite salmon louse Lepeophtheirus salmonis. We compared the ... -
Miljøeffektar av havbruk
Boxaspen, Karin; Skaala, Øystein; Ervik, Arne (Havforskningsnytt, Working paper, 2003)