Blar i Brage IMR på forfatter "Gjøsæter, Harald"

Viser treff 61-80 av 184

    • Fish investigations in the Barents Sea winter 2013-2014 

      Mehl, Sigbjørn; Aglen, Asgeir; Bogstad, Bjarte; Dingsør, Gjert Endre; Gjøsæter, Harald; Godiksen, Jane; Johannesen, Edda; Korsbrekke, Knut; Staby, Arved; Wenneck, Thomas de Lange; Wienerroither, Rupert; Murashko, Pavel A.; Russkikh, Alexey (IMR/PINRO Joint Report Series;2/2014, Research report, 2014)

    • Fish investigations in the Barents Sea winter 2015 

      Mehl, Sigbjørn; Aglen, Asgeir; Dingsør, Gjert Endre; Gjøsæter, Harald; Godiksen, Jane; Staby, Arved; Wenneck, Thomas de Lange; Wienerroither, Rupert; Amelkin, Aleksey (IMR/PINRO Joint Report Series;2/2015, Research report, 2015-06)

    • Fish investigations in the Barents Sea winter 2018. 

      Mehl, Sigbjørn; Aglen, Asgeir; Gjøsæter, Harald; Godiksen, Jane Aanestad; Staby, Arved; Wenneck, Thomas de Lange; Wienerroither, Rupert; Russkikh, Alexey A.; Tretyakov, Ivan (IMR/PINRO Joint Report Series;, Research report, 2018)
      This report presents the main results from the surveys in January-March 2018. The surveys were performed with the Norwegian research vessels “Helmer Hanssen” and “Johan Hjort” and Russian research vessel “Fritjof Nansen”. ...

    • Fish Investigations in the Barents Sea Winter 2019 

      Mehl, Sigbjørn; Wenneck, Thomas de Lange; Aglen, Asgeir; Fuglebakk, Edvin; Gjøsæter, Harald; Godiksen, Jane Aanestad; Seim, Silje Elisabeth; Staby, Arved; Bogstad, Bjarte; Russkikh, Alexey A.; Fomin, Konstantin (IMR/PINRO Joint Report Series;, Research report, 2019)
      The Institute of Marine Research (IMR), Bergen, has performed acoustic measurements of demersal fish in the Barents Sea since 1976. Since 1981 a bottom trawl survey has been combined with the acoustic survey. Typical effort ...

    • Fish investigations in the Barents Sea winter 2020 

      Fall, Johanna Jennifer Elisabeth; Wenneck, Thomas de Lange; Bogstad, Bjarte; Fuglebakk, Edvin; Gjøsæter, Harald; Seim, Silje Elisabeth; Skage, Malin Lie; Staby, Arved; Tranang, Caroline Aas; Windsland, Kristin; Russkikh, Alexey A.; Fomin, Konstantin (IMR/PINRO Joint Report Series;, Research report, 2020)
      This report presents the main results from the surveys in January-March 2020. The surveys were performed with the Norwegian research vessels “Helmer Hanssen” and “Johan Hjort” and the Russian research vessel “Vilnyus”. ...

    • 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 ...

    • Gode spørsmål - og svar... 

      Gjøsæter, Harald; Juell, Jon-Erik; Soldal, Aud Vold (Others, 2005)

    • Growth of 0-group fish in relation to temperature conditions in the Barents Sea during the period 1965- 1989 

      Loeng, Harald; Gjøsæter, Harald (ICES CM Documents;1990/G:49, Working paper, 1990)
      Since 1965 the International 0-group fish survey has been carried out in the Barents Sea during late August and early September. The main purpose is to determine the year-class strength of some commercial fish species ...

    • Growth of Barents Sea capelin (Mallotus villosus) in relation to zooplankton abundance 

      Gjøsæter, Harald; Dalpadado, Padmini; Hassel, Arne (Journal article; Peer reviewed, 2002)
      Because capelin feed on zooplankton, the availability of the latter may be a limiting factor for capelin growth in at least some areas and at certain times. It was therefore hypothesized that a relationship exists between ...

    • Growth of Barents Sea capelin (Mallotus villosus) in relation to zooplankton abundance 

      Gjøsæter, Harald; Dalpadado, Padmini; Hassel, Arne (Journal article; Peer reviewed, 2002)
      Because capelin feed on zooplankton, the availability of the latter may be a limiting factor for capelin growth in at least some areas and at certain times. It was therefore hypothesized that a relationship exists between ...

    • Growth of capelin in relation to zooplankton biomass in the Barents Sea 

      Gjøsæter, Harald; Skjoldal, Hein Rune; Hassel, Arne (ICES CM Documents;1995/P:5, Working paper, 1995)
      Growth of capelin in the Barents Sea stock has been found to vary considerably both between years and between different parts of the distribution area. The aim of this paper is to compare such growth variations with ...

    • Growth of Polar cod (Boreogadus saida) in the Barents Sea 

      Gjøsæter, Harald; Ajiad, Adnan Mosa (ICES CM Documents;1990/G:47, Working paper, 1990)
      Observed length-at-age, and backcalculated lengths based on otolith measurements, from samples of polar cod collected in the Barents Sea in autumn of 1987 to 1989, were analysed. An increase in individual length growth ...

    • Growth of the Barents Sea capelin (Mallotus villosus) in relation to climate 

      Gjøsæter, Harald; Loeng, Harald (ICES CM Documents;1986/H:64, Working paper, 1986)
      The history of capelin assessment in the Barents Sea has shown that the growth of individual capelin has varied between years and different parts of the capelin distribution area. As the number of individuals in this ...

    • Growth of the Barents Sea capelin compared to stock size and geographical distribution 

      Gjøsæter, Harald (ICES CM Documents;1986/H:38, Working paper, 1986)
      The growth of individual capelin in the Barents Sea stock was analysed in relation to the geographical distribution and size of the stock in the feeding season, and the density of fish in the feeding area. The growth ...

    • Growth of the Barents Sea capelin of the yearclasses 1975-1981 

      Gjøsæter, Harald (PINRO-IMR Symposium, Conference object, 1985)
      The method of backcalculating fish lengths based on yearly growth markings in the otoliths is applied to estimate growth of capelin in the yearclasses 1975 to 1981. The Barents Sea is divided into five subareas, and the ...

    • Growth patterns in otoliths as an indication of daily growth variations of larval herring (Clupea harengus) from an experimental ecosystem 

      Gjøsæter, Harald; Øiestad, Victor (ICES CM Documents;1981/H:31, Working paper, 1981)
      Larval herring were released in a large outdoor basin four days after hatching and the mean growth in length and weight of the herring larvae and fry was monitored for 100 days. The food supply was estimated from weekly ...

    • Harp seal body condition and trophic interactions with prey in Norwegian high Arctic waters in early autumn 

      Haug, Tore; Biuw, Martin; Gjøsæter, Harald; Knutsen, Tor; Lindstrøm, Ulf; MacKanzie, Kirsteen M.; Meier, Sonnich; Nilssen, Kjell Tormod (Peer reviewed; Journal article, 2020)
      In September 2016, a marine ecosystem survey covered all trophic levels from phytoplankton to seals in the Arctic Ocean to the west and north of Svalbard. At the ice edge, 26 harp seals were sampled to assess whether recent ...

    • Havets ressurser og miljø 2006 

      Iversen, Svein A.; Fossum, Petter; Gjøsæter, Harald; Skogen, Morten D.; Toresen, Reidar (Fisken og havet, særnummer;1-2006, Research report, 2006-03)

    • Havets ressurser og miljø 2006 

      Iversen, Svein A.; Fossum, Petter; Gjøsæter, Harald; Skogen, Morten D.; Toresen, Reidar (Fisken og havet, særnummer;1-2006, Research report, 2006-03)

    • Havets ressurser og miljø 2007 

      Skogen, Morten D.; Gjøsæter, Harald; Toresen, Reidar; Robberstad, Yvonne (Fisken og havet, særnummer;1-2007, Research report, 2007-03)