Research Programmes: Recent submissions

Now showing items 61-80 of 145

    • Importance of heat transport and local air-sea heat fluxes for Barents Sea climate variability 

      Sandø, Anne Britt; Nilsen, Jan Even Øie; Gao, Y.; Lohmann, K. (Journal article; Peer reviewed, 2010-07-22)
      An isopycnic coordinate ocean model has been used to investigate the importance of different mechanisms on the Barents Sea climate variability for the period 1948–2006 Observed and simulated time series from the Kola Section ...

    • The three-dimensional prey field of the northern krill, Meganyctiphanes norvegica, and the escape responses of their copepod prey 

      Abrahamsen, Mari B.; Browman, Howard I.; Fields, David M.; Skiftesvik, Anne Berit (Journal article; Peer reviewed, 2010-02-24)
      In the north Atlantic, Meganyctiphanes norvegica feeds predominantly on copepods, including Calanus spp. To quantify its perceptual field for prey, and the sensory systems underlying prey detection, the responses of tethered ...

    • Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea 

      Boitsov, Stepan; Petrova, V.; Jensen, Henning K. B.; Kursheva, A.; Litvinenko, I.; Chen, Y.; Klungsøyr, Jarle (Journal article; Peer reviewed, 2011-06)
      Subsurface sediments from a pockmark area in South-Western Barents Sea have been earlier found to contain elevated levels of petroleum-related polycyclic aromatic hydrocarbons. This work describes a comprehensive analysis ...

    • Re-evaluation of the harvest control rule for Northeast Arctic saithe and long-term yield versus exploitation level using Prost 

      Mehl, Sigbjørn; Fotland, Åge (Working paper, 2011-04)

    • Vurdering av Naturindekser i Norge med fokus på de marine indikatorene - Status og videre planer 

      van der Meeren, Gro (Rapport fra Havforskningen;3-2011, Working paper, 2011-02)
      The aim of this report is to state the progress of the work at IMR to develop further the marine bases for the database of Nature indexes of Norway. Time series on krill and amphiopds are being analysed, as well as papers ...

    • Does operational oceanography address the needs of fisheries and applied environmental scientists? 

      Skogen, Morten D.; Berx, B.; Dickey-Collas, Mark; De Roeck, Y.-H.; Klein, H.; Barciela Fernandez, R.; Foster, R.; Dombrowsky, E.; Huret, Martin; Payne, Mark R.; Sagarminaga, Y.; Shrum, C (Journal article; Peer reviewed, 2011)
      Although many oceanographic data products are now considered operational, continued dialogue between data producers and their user communities is still needed. The fisheries and environmental science communities have often ...

    • Thermal niche of Atlantic cod Gadus morhua: limits, tolerance and optima 

      Righton, David; Andersen, Ken Haste; Neat, Francis; Thorsteinsson, Vilhjalmur; Steingrund, P.; Svedäng, Henrik; Michalsen, Kathrine; Hinrichsen, Hans-Harald; Bendall, Victoria; Neuenfeldt, Stefan; Wright, Peter; Jonsson, Patrik; Huse, Geir; Kooij, Jeroen van der; Mosegaard, Henrik; Hüssy, Karin; Metcalfe, Julian D. (Journal article; Peer reviewed, 2010)
      Recent studies in the marine environment have suggested that the limited phenotypic plasticity of cold-adapted species such as Atlantic cod Gadus morhua L. will cause distributions to shift toward the poles in response to ...

    • Spawning stock and recruitment in North Sea cod shaped by food and climate 

      Olsen, Esben Moland; Ottersen, Geir; Llope, Marcos; Chan, Kung-Sik; Beaugrand, Grégory; Stenseth, Nils Christian (Journal article; Peer reviewed, 2010-09-01)
      In order to provide better fisheries management and conservation decisions, there is a need to discern the underlying relationship between the spawning stock and recruitment of marine fishes, a relationship which is ...

    • Helhetlig forvaltningsplan for Nordsjøen og Skagerrak. Vurdering av kunnskapsstatus og kunnskapsbehov 

      Olseng, Christine Daae; van der Meeren, Gro; Nilsen, Svein A.; Nilsen, Bente M. (Kliff: Rapport fra faggruppen for Nordsjøen;TA-number 2720/2010, Research report, 2010-12-07)
      Rapporten gir en sammenstilling av kunnskapsstatus og kunnskapsbehov som er kommet fram i arbeidet med en helhetlig forvaltningsplan for Nordsjøen på nåværende tidspunkt. I første del av rapporten, gis det en kort beskrivelse ...

    • Kartlegging og analyser av faunaen i Hardangerfjorden før mulig legging av elektrisk kabel i korridor 

      Jørgensen, Lis Lindal; Jensen, Silje-Kristin; Holte, Børge; Bakkeplass, Kjell (Fisken og havet;1-2011, Research report, 2011-01-31)
      In relation to a possible cable pathway on the sea floor through the inner half of the Hardanger fjord, the Institute for Marine Research has carried out ROV inspections of the benthic faunal communities along 17 selected ...

    • Reduced migratory performance of farmed Atlantic salmon post-smolts from a simulated escape during autumn 

      Skilbrei, Ove (Journal article; Peer reviewed, 2010-11-10)
      Escape of migratory finfish species from fish farms, such as Atlantic salmon Salmo salar L., offer a challenge when considering the environmental risks of cage culture. The migratory behaviour of groups of cultured salmon ...

    • Marine indikatorer 

      van der Meeren, Gro; Øigård, Tor Arne; Øien, Nils; Nilssen, Kjell Tormod; Oug, Eivind; Sunnanå, Knut; Jakobsen, Tore; Mehl, Sigbjørn; Kvamme, Cecilie; Torstensen, Else; Stenevik, Erling Kåre; Planque, Benjamin; Helle, Gunnar; Gjøsæter, Jakob; Skiftesvik, Anne Berit; Aglen, Asgeir; Johannessen, Tore; Dommasnes, Are; Naustvoll, Lars-Johan; Moy, Frithjof E.; Falkenhaug, Tone; Melle, Webjørn; Knutsen, Tor; Eriksen, Elena; Jørgensen, Lis Lindal; Fosså, Jan Helge; Bannister, Raymond; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Strand, Øivind; Søvik, Guldborg; Jelmert, Anders; Knutsen, Jan Atle; Enersen, Svein Erik; Edvardsen, Hanne; Kroglund, Tone; Pedersen, Atle; Eikrem, Wenche; Bekkby, Trine; Tveite, Stein (DN-utredning;4-2010, Chapter, 2010-09)
      The Nature Index (NI) is established to get an overview of the state and development of biodiversity within the major ecosystems of Norway. It includes marine, limnic and terrestrial ecosystems. The aim of the index is to ...

    • North Sea sensitivity to atmospheric forcing 

      Skogen, Morten D.; Drinkwater, Ken; Hjøllo, Solfrid Sætre; Schrum, Corinna (Journal article; Peer reviewed, 2011-04)
      The sensitivity of North Sea physics and phytoplankton production to atmospheric forcing has been studied by performing perturbations of the atmospheric forcing fields through a number of model simulations. The perturbations ...

    • Recapture of cultured salmon following a large-scale escape experiment 

      Skilbrei, Ove; Jørgensen, Terje (Journal article; Peer reviewed, 2010-10-19)
      A large-scale escape experiment using 1031 adult Atlantic salmon Salmo salar L. was performed in the Hardangerfjord in western Norway to study the dispersal of escaped salmon, evaluate the effect of a gill-net fishery ...

    • Adult recaptures of farmed Atlantic salmon post-smolts allowed to escape during summer 

      Skilbrei, Ove (Journal article; Peer reviewed, 2010-12-21)
      The influence of time of escape on survival to adulthood was tested in farmed Atlantic salmon Salmo salar smolt and post-smolts. Escape events were simulated in a small fjord in western Norway during and after the natural ...

    • Environmental drivers of Atlantic salmon behaviour in sea-cages: a review 

      Oppedal, Frode; Dempster, Tim; Stien, Lars Helge (Journal article; Peer reviewed, 2011-02-03)
      Salmon may sense and respond to a range of environmental variables within sea-cages, including light, temperature, salinity, dissolved oxygen, water currents and certain chemical treatments used during production. Environments ...

    • Undersøkelser i forbindelse med prøvehøsting av stortare i Nord-Trøndelag 2010 

      Steen, Henning (Fisken og havet;8-2010, Research report, 2010-12-20)
      The Institute of Marine Research surveyed the kelp vegetation, before and after the first ever kelp (Laminaria hyperborea) harvesting in Nord-Trøndelag in September 2010. Survey stations included both kelp harvested areas ...

    • FLOXY - Merdlengde, fisketetthet og oksygen 

      Aure, Jan; Oppedal, Frode (Lecture, 2010-11-04)

    • The combined impact of plant-derived dietary ingredients and acute stress on the intestinal arachidonic acid cascade in Atlantic salmon (Salmo salar) 

      Oxley, Anthony; Jolly, Cecile; Eide, Torunn; Jordal, Ann-Elise O.; Svardal, Asbjørn Martin; Olsen, Rolf Erik (Journal article; Peer reviewed, 2010-03)
      A study was conducted to assess the effect of substituting high levels of dietary fish oil (FO) and fishmeal (FM) for vegetable oil (VO) and plant protein (PP) on the intestinal arachidonic acid (AA) cascade in the carnivorous ...

    • Observing the behavioral response of herring exposed to mid-frequency sonar signals. (A) 

      Handegard, Nils Olav; Doksæter, Lise; Godø, Olav Rune; Kvadsheim, Petter H. (Conference object, 2010-03)
      There is general concern on how mid-frequency military sonars might affect aquatic animals. Approaches used to investigate possible effects on Norwegian spring spawning herring (Clupea harengus) are presented. Experiments ...