Search Results - "Skjæraasen, Jon E."

Genetic structuring in Atlantic haddock contrasts with current management regimes by Berg, Paul R, Jorde, Per E, Glover, Kevin A, Dahle, Geir, Taggart, John B, Korsbrekke, Knut, Dingsør, Gjert E, Skjæraasen, Jon E, Wright, Peter J, Cadrin, Steven X, Knutsen, Halvor, Westgaard, Jon-Ivar

“…Abstract The advent of novel genetic methods has made it possible to investigate population structure and connectivity in mobile marine fish species: knowledge…”
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Ecological interactions between farmed Atlantic salmon and wild Atlantic cod populations in Norway: A review of risk sources and knowledge gaps by Bøhn, Thomas, Strøm, John F., Sanchez‐Jerez, Pablo, Keeley, Nigel B., Johansen, Torild, Gjelland, Karl Ø., Sandlund, Nina, Sæther, Bjørn‐S., Sætra, Ingeborg, Olsen, Esben M., Skjæraasen, Jon E., Meier, Sonnich, Meeren, Terje, Bjørn, Pål A.

“…Aquaculture provides an important and expanding source of protein rich and healthy food to the world. However, to minimize environmental harm from aquaculture,…”
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The hypoxia avoidance behaviour of juvenile Atlantic cod (Gadus morhua L.) depends on the provision and pressure level of an O2 refuge by Herbert, Neill A., Skjæraasen, Jon E., Nilsen, Trygve, Salvanes, Anne G. V., Steffensen, John F.

“…The frequency of low O 2 (hypoxia) has increased in coastal marine areas but how fish avoid deleterious water masses is not yet clear. To assess whether the…”
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Large annual variation in the amount of skipped spawning for female Northeast Arctic haddock Melanogrammus aeglefinus by Skjæraasen, Jon E., Korsbrekke, Knut, Dingsør, Gjert Endre, Langangen, Øystein, Opdal, Anders Frugård, Jørgensen, Christian

“…•We estimate skipped spawning for Northeast Arctic (NEA) haddock.•A time-series of population level fraction of skipping was estimated.•Large interannual…”
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Sperm characteristics and competitive ability in farmed and wild cod by Skjæraasen, Jon E., Mayer, Ian, Meager, Justin J., Rudolfsen, Geir, Karlsen, Ørjan, Haugland, Thomas, Kleven, Oddmund

“…The development of cod aquaculture has raised concerns about its effect on wild stocks. One risk is hybridisation between escapees and wild cod, causing…”
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Territorial and agonistic interactions between farmed and wild cod (Gadus morhua) by Sverdrup, Gisle K, Meager, Justin J, Fernö, Anders, Skjæraasen, Jon E, Rodewald, Petra, Salvanes, Anne G V, Järvi, Torbjörn

“…Studies of contest competition between wild and farmed fish have mostly focused on fish with strongly territorial behaviour. Little is known about species with…”
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The hypoxia avoidance behaviour of juvenile Atlantic cod depends on the provision and pressure level of an O.sub.2 refuge by Herbert, Neill A, Skjæraasen, Jon E, Nilsen, Trygve, Salvanes, Anne G. V, Steffensen, John F

“…The frequency of low O.sub.2 (hypoxia) has increased in coastal marine areas but how fish avoid deleterious water masses is not yet clear. To assess whether…”
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The Effect of Photoperiod on Sexual Maturation, Appetite and Growth in Wild Atlantic Cod (Gadus morhua L.) by Skjæraasen, J.E., Salvanes, A.G.V., Karlsen, Ø., Dahle, R., Nilsen, T., Norberg, B.

“…An experiment was conducted to examine (a) the effects of photoperiod on timing of sexual maturation (b) the relationship between plasma steroid levels,…”
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Territorial and agonistic interactions between farmed and wild cod (Gadus morhua): Competition between farmed and wild cod by Sverdrup, Gisle K, Meager, Justin J, Fernö, Anders, Skjaeraasen, Jon E, Rodewald, Petra, Salvanes, Anne G V, Järvi, Torbjörn

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Sperm characteristics and competitive ability in farmed and wild cod by Skjaeraasen, Jon E, Mayer, Ian, Meager, Justin J, Rudolfsen, Geir, Karlsen, Oerjan, Haugland, Thomas, Kleven, Oddmund

“…The development of cod aquaculture has raised concerns about its effect on wild stocks. One risk is hybridisation between escapees and wild cod, causing…”
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