Blar i Brage IMR på forfatter "Gjøsæter, Harald"
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Diet of polar cod, Boreogadus saida, in the Barents Sea related to fish size and geographical distribution
Ajiad, Adnan Mosa; Gjøsæter, Harald (ICES CM Documents;1990/G:48, Working paper, 1990)Polar cod stomachs collected during autumn of 1986-1988 in the Barents Sea were analysed. The results indicated that polar cod is an opportunistic feeder, and that the observed changes in feeding pattern from one region ... -
Distribution and growth of capelin in the Barents Sea in relation to water temperature in the period 1974 to 1983
Gjøsæter, Harald; Loeng, Harald (ICES CM Documents;1984/GEN:16, Working paper, 1984)The variation in the distribution of the different age-groups of capelin in the Barents Sea were studied in relation to temperature variation in the period 1974 to 1983. In addition, growth of the capelin were compared ... -
Distribution of rorquals and Atlantic cod in relation to their prey in the Norwegian high Arctic
Solvang, Hiroko K.; Haug, Tore; Knutsen, Tor; Gjøsæter, Harald; Bogstad, Bjarte; Hartvedt, Siri; Øien, Nils; Lindstrøm, Ulf (Peer reviewed; Journal article, 2021)Recent warming in the Barents Sea has led to changes in the spatial distribution of both zooplankton and fish, with boreal communities expanding northwards. A similar northward expansion has been observed in several rorqual ... -
Drift of capelin larvae - a population sink?
Bjørke, Herman; Gjøsæter, Harald; Loeng, Harald (ICES CM Documents;1988/H:54, Working paper, 1988) -
Ecosystem approach to Barents Sea Ecology : spatial and trophic relationships
Jørgensen, Lis Lindal; Olsen, Erik; Gjøsæter, Harald; Knutsen, Tor; Lønne, Ole Jørgen; Loeng, Harald; Primicerio, Raul (Conference object, 2007-01-22) -
Effekter av bunntråling - Sammenstilling av kunnskap om bunnpåvirkning fra trål og snurrevad relevant for norske farvann
Løkkeborg, Svein; Bakkeplass, Kjell Gunnar; Diesing, Markus; Gjøsæter, Harald; Gonzalez-Mirelis, Genoveva; Hvingel, Carsten; Jørgensen, Lis Lindal; Moland, Even; Norderhaug, Kjell Magnus; Rastrick, Samuel (Rapport fra havforskningen;2023 - 1, Research report, 2023)Rapporten gir en sammenstilling av publisert kunnskap om hvordan bunnhabitater og bunndyr påvirkes (fysiske, kjemiske og biologiske effekter) av fiske med bunntrål og snurrevad. Det legges hovedvekt på påvirkninger fra ... -
Endringar i forvaltningsregelen for NA torsk
Gjøsæter, Harald (Conference object, 2010-01-19) -
Endringar i forvaltningsregelen for NA torsk
Gjøsæter, Harald (Conference object, 2010-01-19) -
Environmental controls on macrozooplankton and fish distributions over diurnal to seasonal time scales in the northern Barents Sea
Cannaby, Heather Anne; Ingvaldsen, Randi Brunvær; Lundesgaard, Øyvind; Renner, Angelika; Skaret, Georg; Sakinan, Serdar S.; Chierici, Melissa; Gjøsæter, Harald (Peer reviewed; Journal article, 2023)We present acoustic observations obtained by bottom mounted echosounders at two locations in the northern Barents Sea and a third on the northern continental slope of the Barents Sea. Data collected over a period of ... -
Essay om fiskerier i Porsangerfjorden før og nå - et resultat av møter mellom fjordbrukere og forskere
Strand, Hans Kristian; Daleng, Jan; Eliassen, Tore; Follesø, Thor; Gjøsæter, Harald; Hansen, Hans Oliver; Hansen, Thomas; Johansen, Hartvig; Josefsen, Hedly; Larsen, Dagny; Martinsen, Terje; Nedreaas, Kjell Harald; Pedersen, Torstein; Skern-Mauritzen, Mette; Strand, Mette; Søvik, Guldborg; Zimmermann, Fabian (Rapport fra havforskningen;2020 - 41, Research report, 2020)Porsangerfjorden gikk fra å være en fiskerik fjord i første halvdelen av 1900-tallet, til en mye mer fiskefattig fjord i den andre halvdelen. Den fiskefattige tilstanden har vedvart fram til i dag. Den invaderende kongekrabben ... -
Et meget godt år for loddelarvene
Gjøsæter, Harald (Havforskningsnytt, Working paper, 1998) -
An evaluation of the methodology for prediction of capelin biomass
Bogstad, Bjarte; Gjøsæter, Harald; Ushakov, N.G.; Prozorkevich, Dmitry (IMR/PINRO Joint Report Series, Conference object, 2005)The one-year prediction of capelin made as part of the assessment after the annual joint acoustic capelin survey during the autumn, is evaluated. Such predictions were made for the period from 1981 till present, and compared ... -
An evaluation of the methodology for prediction of capelin biomass
Bogstad, Bjarte; Gjøsæter, Harald; Ushakov, N.G.; Prozorkevich, Dmitry (IMR/PINRO Joint Report Series, Conference object, 2005)The one-year prediction of capelin made as part of the assessment after the annual joint acoustic capelin survey during the autumn, is evaluated. Such predictions were made for the period from 1981 till present, and compared ... -
An evaluation of the methodology for prediction of capelin biomass [presentation]
Bogstad, Bjarte; Gjøsæter, Harald; Ushakov, N.G.; Prozorkevich, Dmitry (IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
An evaluation of the methodology for prediction of capelin biomass [presentation]
Bogstad, Bjarte; Gjøsæter, Harald; Ushakov, N.G.; Prozorkevich, Dmitry (IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Evaluation of the proposed harvest control rule for Northeast Arctic saithe: background, population model, parameters, data and preliminary analyses
Mehl, Sigbjørn; Fotland, Åge; Bogstad, Bjarte; Korsbrekke, Knut; Gjøsæter, Harald (Working paper, 2007) -
Evidence of diel vertical migration of mesopelagic sound-scattering organisms in the Arctic
Gjøsæter, Harald; Wiebe, Peter H.; Knutsen, Tor; Ingvaldsen, Randi Brunvær (Peer reviewed; Journal article, 2017) -
Fish assemblages at the Yermak Plateau and in northern Svalbard waters during the period 2012-2020
Gjøsæter, Harald; Ingvaldsen, Randi Brunvær; Hallfredsson, Elvar Halldor; Johannesen, Edda (Peer reviewed; Journal article, 2023)During several surveys covering the north-western and northern Svalbard waters, and the deeper Yermak Plateau north of Svalbard during the period 2012–2020, 291 standardized hauls with a demersal trawl were made. All fishes ... -
Fish assemblages at the Yermak Plateau and in northern Svalbard waters during the period 2012–2020
Gjøsæter, Harald; Ingvaldsen, Randi Brunvær; Hallfredsson, Elvar Halldor; Johannesen, Edda (Peer reviewed; Journal article, 2023)During several surveys covering the north-western and northern Svalbard waters, and the deeper Yermak Plateau north of Svalbard during the period 2012–2020, 291 standardized hauls with a demersal trawl were made. All fishes ... -
Fish investigations in the Barents Sea winter 2007-2012
Mehl, Sigbjørn; Aglen, Asgeir; Bogstad, Bjarte; Dingsør, Gjert Endre; Gjøsæter, Harald; Johannesen, Edda; Korsbrekke, Knut; Staby, Arved; Wenneck, Thomas de Lange; Alexandrov, Dmitry I.; Murashko, Pavel A.; Prozorkevich, Dmitry; Smirnov, Oleg (IMR/PINRO Joint Report Series;1/2013, Research report, 2013)