Blar i Brage IMR på forfatter "Stiansen, Jan Erik"

Viser treff 1-20 av 39

    • Advice on fishing opportunities for Barents Sea capelin in 2024 — ICES subareas 1 and 2 excluding Division 2.a west of 5°W 

      Howell, Daniel; Nielsen, Anders; Stock, Brian; Ono, Kotaro; Clain, Laura; Fossheim, Maria; Wenneck, Thomas de Lange; Harbitz, Alf; Rodriguez, Alfonso Pérez; Iriondo, Ane; Staby, Arved; Bogstad, Bjarte; Husson, Berengere; Marshall, C. Tara; Tranang, Caroline Aas; Johannesen, Edda; Vozgirdas, Eduardas; Eriksen, Elena; Eidset, Elise; Hallfredsson, Elvar H.; Berg, Erik; Skaret, Georg; Höffle, Hannes; Jacobsen, Jan Arge; Stiansen, Jan Erik; Godiksen, Jane Aanestad; Janusz, Jerzy; Fall, Johanna Jennifer Elisabeth; Trochta, John Tyler; Gondra, Jon Ruiz (IMR/PINRO Joint Report Series, Research report, 2023)

    • Antarctic krill Euphausia superba: spatial distribution, abundance, and management of fisheries in a changing climate 

      McBride, Margaret; Stokke, Olav Schram; Renner, Angelika; Krafft, Bjørn Arne; Bergstad, Odd Aksel; Biuw, Martin; Lowther, Andrew; Stiansen, Jan Erik (Peer reviewed; Journal article, 2021)
      Antarctic krill Euphausia superba, a keystone species in the Southern Ocean, is highly relevant for studying effects of climate-related shifts on management systems. Krill provides a key link between primary producers and ...

    • Can silicate and turbulence regulate the vertical flux of biogenic matter? A mesocosm study 

      Svensen, Camilla; Egge, Jorun K.; Stiansen, Jan Erik (Journal article; Peer reviewed, 2001-07-31)
      The effects of silicate and turbulence on the vertical flux of biogenic matter were studied in mesocosms. The experiment consisted of eight 27 m3 enclosures all fertilised with nitrate and phosphate (NP), while 4 of the ...

    • Climate change and new potential spawning sites for Northeast Arctic cod 

      Sandø, Anne Britt; Johansen, Geir Odd; Aglen, Asgeir; Stiansen, Jan Erik; Renner, Angelika (Peer reviewed; Journal article, 2020)
      In this study we investigate both historical and potential future changes in the spatial distribution of spawning habitats for Northeast Arctic cod (NEA cod) based on a literature study on spawning habitats and different ...

    • Climate-fish relations in Norwegian waters 

      Stiansen, Jan Erik; Loeng, Harald; Svendsen, Einar; Pettersson, L.H.; Johannessen, Johnny A.; Furevik, Tore; Handegard, Nils Olav; Fredo, O. (Fisken og havet, Research report, 2002)
      Climate variability and change in the Arctic and Sub-Arctic regions have become increasingly important issues over the past few decades. The goal of the Arctic Climate Impact Assessment (ACIA) is to evaluate and synthesize ...

    • Eastern Scotian Shelf and Barents Sea intercomparison: climate fluctuations, human impact, and system resilience 

      Johannesen, Edda; Skern-Mauritzen, Mette; Ingvaldsen, Randi; Stiansen, Jan Erik; Orlova, Emma L. (ICES CM documents;2010/S:10, Working paper, 2010)

    • Ecosystem dynamics and fisheries management in the Barents sea 

      Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)

    • Ecosystem dynamics and fisheries management in the Barents sea 

      Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)

    • Ecosystem dynamics and fisheries management in the Barents sea [presentation] 

      Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)

    • Ecosystem dynamics and fisheries management in the Barents sea [presentation] 

      Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)

    • An ecosystem modeling approach to predicting cod recruitment 

      Svendsen, Einar; Skogen, Morten D.; Budgell, W. Paul; Huse, Geir; Stiansen, Jan Erik; Ådlandsvik, Bjørn; Vikebø, Frode; Asplin, Lars; Sundby, Svein (ICES CM documents, Working paper, 2006)
      Abstract The NORWECOM ocean model system implemented with the ROMS ocean circulation model has been run to simulate conditions over the last 25 years for the North Atlantic. Modelled time series of volume fluxes, primary ...

    • Feeding of plankton in a turbulent environment: A comparison of analytical and observational results covering also strong turbulence 

      Pécseli, Hans L.; Trulsen, Jan K.; Stiansen, Jan Erik; Sundby, Svein (Peer reviewed; Journal article, 2020)
      The present studies address feeding of plankton in turbulent environments, discussed by a comparison of analytical results and field data. Various models for predator-prey encounters and capture probabilities are reviewed. ...

    • Feeding of plankton in turbulent oceans and lakes 

      Pécseli, Hans L.; Trulsen, Jan K.; Stiansen, Jan Erik; Sundby, Svein; Fossum, Petter (Journal article; Peer reviewed, 2019)
      Analytical models for the statistical distribution of the gut content of fish larvae in a turbulent ocean environment are compared to data obtained in a field experiment. The proposed model allows the nutrition state and ...

    • Flytter torsken? 

      Stiansen, Jan Erik; Johansen, Geir Odd; Kvamme, Cecilie; Mehl, Sigbjørn; Ådlandsvik, Bjørn; Hannesson, Rögnvaldur; Ekerhovd, Nils Arne (Journal article, 2009-10)

    • From single species surveys towards monitoring of the Barents Sea ecosystem 

      Eriksen, Elena; Gjøsæter, Harald; Prozorkevich, Dmitry V.; Shamray, Evgeny; Dolgov, Andrey V.; Skern-Mauritzen, Mette; Stiansen, Jan Erik; Kovalev, Yu; Sunnanå, Knut (Journal article; Peer reviewed, 2017)
      The Barents Sea, a large, high-latitude shelf sea, has been monitored and investigated for more than a century. More than 1800 occasional expeditions have been organized both by Norway and Russia, and since the1960s the ...

    • Harvest control rules in modern fisheries management 

      Kvamsdal, Sturla F; Eide, Arne; Ekerhovd, Nils-Arne; Enberg, Katja; Gudmundsdottir, Asta; Hoel, Alf Håkon; Mills, Katherine E.; Mueter, Franz J.; Ravn-Jonsen, Lars; Sandal, Leif Kristoffer; Stiansen, Jan Erik; Vestergaard, Niels (Journal article; Peer reviewed, 2016-07-20)
      Harvest control rules have become an important tool in modern fisheries management, and are increasingly adopted to provide continuity in management practices, to deal with uncertainty and ecosystem considerations, and to ...

    • Highly mixed impacts of near-future climate change on stock productivity proxies in the North East Atlantic 

      Kjesbu, Olav Sigurd; Sundby, Svein; Sandø, Anne Britt; Alix, Maud; Hjøllo, Solfrid Sætre; Tiedemann, Maik; Skern-Mauritzen, Mette; Junge, Claudia; Fossheim, Maria; Broms, Cecilie; Søvik, Guldborg; Zimmermann, Fabian; Nedreaas, Kjell Harald; Eriksen, Elena; Höffle, Hannes; Hjelset, Ann Merete; Kvamme, Cecilie; Reecht, Yves; Knutsen, Halvor; Aglen, Asgeir; Albert, Ole Thomas; Berg, Erik; Bogstad, Bjarte; Durif, Caroline; Halvorsen, Kim Aleksander Tallaksen; Høines, Åge Sigurd; Hvingel, Carsten; Johannesen, Edda; Johnsen, Espen; Moland, Even; Myksvoll, Mari Skuggedal; Nøttestad, Leif; Olsen, Erik Joel Steinar; Skaret, Georg; Skjæraasen, Jon Egil; Slotte, Aril; Staby, Arved; Stenevik, Erling Kåre; Stiansen, Jan Erik; Stiasny, Martina H.; Sundet, Jan Henry; Vikebø, Frode Bendiksen; Huse, Geir (Peer reviewed; Journal article, 2021)
      Impacts of climate change on ocean productivity sustaining world fisheries are predominantly negative but vary greatly among regions. We assessed how 39 fisheries resources—ranging from data-poor to data-rich stocks—in the ...

    • IMR status report on the Barents Sea Ecosystem, 2004-2005 

      Stiansen, Jan Erik; Bogstad, Bjarte; Dalpadado, Padmini; Gjøsæter, Harald; Hauge, Kjellrun Hiis; Ingvaldsen, Randi; Loeng, Harald; Mauritzen, Mette; Mehl, Sigbjørn; Ottersen, Geir; Stenevik, Erling Kåre (Working paper, 2005)

    • IMR/PINRO update of the “Joint Norwegian-Russian environmental status report on the Barents Sea Ecosystem” 

      McBride, Margaret Mary; Filin, Anatoly; Titov, Oleg V.; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;1/2014, Research report, 2014)

    • Including climate into the assessment of future fish recruitment, using multiple regression models 

      Stiansen, Jan Erik; Bogstad, Bjarte; Aglen, Asgeir; Svendsen, Einar; Loeng, Harald; Mehl, Sigbjørn; Nakken, Odd (Conference object, 2004)