• Diel vertical migration patterns in juvenile cod from the Skagerrak coast 

      Espeland, Sigurd Heiberg; Thoresen, Adine Guldborg; Olsen, Esben Moland; Stige, Leif Christian; Knutsen, Halvor; Gjøsæter, Jakob; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-04-29)
      We demonstrated a clear year-round diel vertical migration pattern (DVM) of small (26 to 45 cm) Skagerrak coastal cod Gadus morhua on a small geographic scale. Generalized additive models (GAMs) were used to make inferences ...
    • Differential responses of three sympatric seabirds to spatio-temporal variability in shared resources 

      Sabarros, Philippe Sunil; Durant, Joël M.; Grémillet, David; Crawford, Robert J.M.; Stenseth, Nils Christian (Journal article; Peer reviewed, 2012-11-14)
      Environmental change linked to climate and human activities may affect top predators via the food chain in marine systems. Understanding the functional link between resources and predator responses (e.g. foraging effort, ...
    • Direct and indirect climate forcing in a multi-species marine system 

      Ottersen, Geir; Stige, Leif Christian; Dalpadado, Padmini; Chan, Kung-Sik; Hjermann, Dag Ø.; Lajus, Dmitry L.; Yaragina, Natalia A.; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-10)
      Interactions within and between species complicate quantification of climate effects, by causing indirect, often delayed, effects of climate fluctuations and compensation of mortality. Here we identify direct and indirect ...
    • Dissolved oxygen in contrasting estuaries of the Bay of Biscay: effects of temperature, river discharge and chlorophyll a 

      Iriarte, Arantza; Aravena, Guillermo; Villate, Fernando; Uriarte, Ibon; Ibáñez, Berta; Llope, Marcos; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-11-18)
      The effects of environmental factors on variations of dissolved oxygen (DO) saturation was assessed in 2 estuaries (Bilbao and Urdaibai) in the Bay of Biscay with contrasting hydrography and anthropogenic impact, for the ...
    • Dramatic changes in spawning stock age-structure of Barents Sea cod 

      Ottersen, Geir; Hjermann, Dag Ø.; Stenseth, Nils Christian (ICES CM documents, Working paper, 2004)
      Atlantic Cod (Gadus morhua) is one of the commercially most important fish species in the North Atlantic and plays a central role in several ecosystems. Fishing pressure has been heavy over a prolonged period and the ...
    • Dynamics of the Norwegian Skagerrak cod: intuition vs inference 

      Fromentin, Jean-Marc; Bjørnstad, Ottar N.; Stenseth, Nils Christian; Gjøsæter, Jakob (Journal article; Peer reviewed, 2002-10-04)
    • Ecological Forecasting under Climate Change – the case of Baltic cod 

      Lindegren, M.; Möllmann, Christian; Nielsen, Anders; Brander, Keith; MacKenzie, Brian; Stenseth, Nils Christian (ICES CM documents;2009/C:01, Working paper, 2009)
      Ecosystems worldwide have already shown clear evidence of change in response to global warming. Since ecosystems provide vital goods and services, our ability to anticipate future changes is of great concern. In order to ...
    • Economic repercussions of fisheries-induced evolution 

      Eikeset, Anne Maria; Richter, Andries; Dunlop, Erin S.; Dieckmann, Ulf; Stenseth, Nils Christian (Journal article; Peer reviewed, 2013-07-23)
      Fish stocks experiencing high fishing mortality show a tendency to mature earlier and at a smaller size, which may have a genetic component and therefore long-lasting economic and biological effects. To date, the economic ...
    • Egg distribution, bottom topography and small-scale cod population structure in a coastal marine system 

      Knutsen, Halvor; Olsen, Esben Moland; Ciannelli, Lorenzo; Espeland, Sigurd Heiberg; Knutsen, Jan Atle; Simonsen, Jan Henrik; Skreslet, Stig; Stenseth, Nils Christian (Journal article; Peer reviewed, 2007-03-12)
      Coastal marine species with pelagic egg and larval stages, such as the Atlantic cod Gadus morhua, can be structured into genetically distinct local populations on a surprisingly small geographic scale considering their ...
    • Enhancing stock-recruitment models for North Sea cod by including climate and zooplankton 

      Ottersen, Geir; Olsen, Esben Moland; Stenseth, Nils Christian (ICES CM documents;2009/C:08, Working paper, 2009)
      The “recruitment problem” - trying to understand what regulates recruitment variability in marine fish populations - has been the number one issue in fisheries science since the early twentieth century. Intuitively, the ...
    • Environmental effects on ocean entry of Atlantic salmon (Salmo salar) smolt across its range of distribution 

      Otero, Jaime; Antonsson, T.; Armstrong, J.; Arnason, F.; Arnekleiv, J.V.; Baglinière, J.-L.; Caballero, P.; Castro-Santos, T.; Dempson, J. Brian; Erkinaro, Jaakko; Gudjonsson, S.; Horton, G.; Hvidsten, N.A.; Jensen, Arne J.; Jokikokko, E.; Jonsson, I.R.; Kocik, J.F.; L’Abée-Lund, Jan Henning; Lamberg, A.; Letcher, B.H.; Niemelä, Eero; Romakkaniemi, A.; Russell, I.; Stenseth, Nils Christian; Storvik, Geir; Veselov, A.J.; Vøllestad, Leif Asbjørn (ICES CM documents;2010/S:26, Working paper, 2010)
    • Environmental toxicology: Population modeling of cod larvae shows high sensitivity to loss of zooplankton prey 

      Stige, Leif Christian; Ottersen, Geir; Hjermann, Dag Ø.; Dalpadado, Padmini; Jensen, Louise K.; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-12-30)
      Two factors determine whether pollution is likely to affect a population indirectly through loss of prey: firstly, the sensitivity of the prey to the pollutants, and secondly, the sensitivity of the predator population to ...
    • Environmental toxicology: Population modeling of cod larvae shows high sensitivity to loss of zooplankton prey 

      Stige, Leif Christian; Ottersen, Geir; Hjermann, Dag Ø.; Dalpadado, Padmini; Jensen, Louise K.; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-12-30)
      Two factors determine whether pollution is likely to affect a population indirectly through loss of prey: firstly, the sensitivity of the prey to the pollutants, and secondly, the sensitivity of the predator population to ...
    • Evolution of the immune system influences speciation rates in teleost fishes 

      Malmstrøm, Martin; Matschiner, Michael; Tørresen, Ole Kristian; Star, Bastiaan; Snipen, Lars-Gustav; Hansen, Thomas F; Baalsrud, Helle Tessand; Nederbragt, Alexander Johan; Hanel, Reinhold; Salzburger, Walter; Stenseth, Nils Christian; Jakobsen, Kjetill Sigurd; Jentoft, Sissel (Journal article; Peer reviewed, 2016)
      Teleost fishes constitute the most species-rich vertebrate clade and exhibit extensive genetic and phenotypic variation, including diverse immune defense strategies. The genomic basis of a particularly aberrant strategy ...
    • Extension of the match-mismatch hypothesis to predator-controlled systems 

      Durant, Joël M.; Hjermann, Dag Ø.; Falkenhaug, Tone; Gifford, Dian J.; Naustvoll, Lars-Johan; Sullivan, Barbara K.; Beaugrand, Grégory; Stenseth, Nils Christian (Journal article; Peer reviewed, 2013-01-31)
      Differential change in the phenology of predators and prey is a potentially important climate-mediated mechanism influencing populations. The match-mismatch hypothesis describes the effect of predator-prey population ...
    • Factors affecting year-to-year and within river variability of one-sea-winter Atlantic salmon in Norwegian rivers 

      Otero, Jaime; Jensen, Arne J.; L’Abée-Lund, Jan Henning; Stenseth, Nils Christian; Storvik, Geir; Vøllestad, Leif Asbjørn (ICES CM documents;2009/E:14, Working paper, 2009)
      Many Atlantic salmon, Salmo salar, populations are decreasing throughout its distributional range due to several factors acting in concert. A number of studies have documented the influence of freshwater and ocean ...
    • Fine-scale population dynamics in a marine fish species inferred from dynamic state-space models 

      Rogers, Lauren; Storvik, Geir Olve; Knutsen, Halvor; Olsen, Esben Moland; Stenseth, Nils Christian (Peer reviewed; Journal article, 2017)
    • Fish and oil in the Lofoten–Barents Sea system: synoptic review of the effect of oil spills on fish populations 

      Hjermann, Dag Ø.; Melsom, Arne; Dingsør, Gjert Endre; Durant, Joël M.; Eikeset, Anne Maria; Røed, Lars Petter; Ottersen, Geir; Storvik, Geir; Stenseth, Nils Christian (Journal article; Peer reviewed, 2007-06-06)
      The Lofoten-Barents Sea area, which contains some of the most valuable fish stocks of the Atlantic Ocean, is being considered for offshore oil production. We review the effects of a hypothetical oil spill on fishes in this ...
    • Genome architecture enables local adaptation of Atlantic cod despite high connectivity 

      Barth, Julia Maria Isis; Berg, Paul Ragnar; Jonsson, Per R; Bonanomi, Sara; Corell, Hanna; Hemmer-Hansen, Jakob; Jakobsen, Kjetill Sigurd; Johannesson, Kerstin; Jorde, Per Erik; Knutsen, Halvor; Moksnes, Per-Olav; Star, Bastiaan; Stenseth, Nils Christian; Svedang, Henrik; Jentoft, Sissel; Andre, Carl (Journal article; Peer reviewed, 2017)
      Adaptation to local conditions is a fundamental process in evolution; however, mechanisms maintaining local adaptation despite high gene flow are still poorly understood. Marine ecosystems provide a wide array of diverse ...
    • Genome architecture enables local adaptation of Atlantic cod despite high connectivity 

      Barth, Julia Maria Isis; Berg, Paul Ragnar; Jonsson, Per R; Bonanomi, Sara; Corell, Hanna; Hemmer-Hansen, Jakob; Jakobsen, Kjetill Sigurd; Johannesson, Kerstin; Jorde, Per Erik; Knutsen, Halvor; Moksnes, Per-Olav; Star, Bastiaan; Stenseth, Nils Christian; Svedang, Henrik; Jentoft, Sissel; Andre, Carl (Journal article; Peer reviewed, 2017)
      Adaptation to local conditions is a fundamental process in evolution; however, mechanisms maintaining local adaptation despite high gene flow are still poorly understood. Marine ecosystems provide a wide array of diverse ...