Blar i Brage IMR på forfatter "Aglen, Asgeir"

Viser treff 41-60 av 124

    • 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 2016 

      Mehl, Sigbjørn; Aglen, Asgeir; Bogstad, Bjarte; Dingsør, Gjert Endre; Korsbrekke, Knut; Olsen, Erik; Staby, Arved; Wenneck, Thomas de Lange; Wienerroither, Rupert; Amelkin, Aleksey; Russkikh, Aleksey (IMR/PINRO Joint Report Series;4/2016, Research report, 2016-09)

    • Fish investigations in the Barents Sea winter 2017 

      Mehl, Sigbjørn; Aglen, Asgeir; Bogstad, Bjarte; Russkikh, Alexey A.; Staby, Arved; Wenneck, Thomas de Lange; Wienerroither, Rupert (IMR/PINRO Joint Report Series;, Research report, 2017)
      This report presents the main results from the surveys in January–March 2017. The surveys were performed with the Norwegian research vessels “Helmer Hanssen” and “G.O. Sars”. Annual survey reports since 1981 are listed in ...

    • 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 ...

    • Genetic management of mixed-stock fisheries "real-time": The case of the largest remaining cod fishery operating in the Atlantic in 2007-2017 

      Dahle, Geir; Johansen, Torild; Westgaard, Jon-Ivar; Aglen, Asgeir; Glover, Kevin (Journal article; Peer reviewed, 2018)
      Fish stocks represent fundamental units in fisheries management, and their identification, especially in mixed-fisheries, represents one of the primary challenges to sustainable harvest. Here, we describe the first “real-time” ...

    • Havforskningsrapporten 2012 

      Aglen, Asgeir; Bakketeig, Ingunn; Gjøsæter, Harald; Hauge, Marie; Loeng, Harald; Sunnset, Beate Hoddevik; Toft, Kari Østervold (Fisken og havet, særnummer;1-2012, Research report, 2012-03)

    • 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 ...

    • Improving management decisions by predicting fish bycatch in the Barents Sea shrimp fishery 

      Aldrin, Magne; Mortensen, Bjørnar; Storvik, Geir; Nedreaas, Kjell Harald; Aglen, Asgeir; Aanes, Sondre (Journal article; Peer reviewed, 2011-11-20)
      When the bycatch of juvenile fish within the Barents Sea shrimp fishery is too large, the area is closed to fishing for a certain period. Bycatch is estimated from sampled trawl hauls, for which the shrimp yield is recorded, ...

    • In situ fish target strengths derived with a split-beam echo sounder 

      Nakken, Odd; Foote, Kenneth G.; Aglen, Asgeir (ICES CM documents, Working paper, 1985)
      In-situ target strengths of six fishes were determined with a split-beam echo sounder during cruises about Lofoten in March 1984 and the Shetland Islands in July 1984. The species and lengths, mean and standard deviation, ...

    • 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)

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

      Stiansen, Jan Erik; Aglen, Asgeir; Bogstad, Bjarte; Loeng, Harald; Mehl, Sigbjørn; Nakken, Odd; Ottersen, Geir; Svendsen, Einar (ICES CM documents, Working paper, 2005)
      Climate variability has generally not been included in the assessment of fish stocks in the Barents Sea and Norwegian Sea. However, in recent years there has been a focus on implementing climate variability in the assessment ...

    • Influence of climate on recruitment and migration of fish stocks in the North Sea 

      Svendsen, Einar; Aglen, Asgeir; Iversen, Svein A.; Skagen, Dankert W.; Smedstad, Odd M. (ICES CM Documents;1991/H:12, Working paper, 1991)
      For several decades one of the prime targets within fishery science has been to be able to understand and explain the great variability in the success of survival from egg to mature fish. One of the reasons why such effort ...

    • Investigations on demersal fish in the Barents Sea winter 2000 : detailed report 

      Aglen, Asgeir; Drevetnyak, Konstantin; Jakobsen, Tore; Korsbrekke, Knut; Lepesevich, Yuri; Mehl, Sigbjørn; Nakken, Odd; Nedreaas, Kjell Harald (IMR/PINRO joint report series, Research report, 2001)
      A combined acoustic and bottom trawl survey to obtain indices of abundance and estimates of length and weight at age has been carried out each winter (4-6 weeks in January-March) since 1981 in the Barents Sea. The target ...

    • Investigations on demersal fish in the Barents Sea winter 2000 : detailed report 

      Aglen, Asgeir; Drevetnyak, Konstantin; Jakobsen, Tore; Korsbrekke, Knut; Lepesevich, Yuri; Mehl, Sigbjørn; Nakken, Odd; Nedreaas, Kjell Harald (IMR/PINRO joint report series, Research report, 2001)
      A combined acoustic and bottom trawl survey to obtain indices of abundance and estimates of length and weight at age has been carried out each winter (4-6 weeks in January-March) since 1981 in the Barents Sea. The target ...

    • Investigations on demersal fish in the Barents Sea winter 2001 : detailed report 

      Aglen, Asgeir; Alvsvåg, John; Lepesevich, Yuri; Korsbrekke, Knut; Mehl, Sigbjørn; Nedreaas, Kjell Harald; Sokolov, Konstantin; Ågotnes, Per (IMR/PINRO joint report series, Research report, 2002)
      A combined acoustic and bottom trawl survey to obtain indices of abundance and estimates of length and weight at age has been carried out each winter (46 weeks in January- March) since 1981 in the Barents Sea. The target ...

    • Investigations on demersal fish in the Barents Sea winter 2002 : detailed report 

      Aglen, Asgeir; Alvsvåg, John; Drevetnyak, Konstantin; Høines, Åge S.; Korsbrekke, Knut; Mehl, Sigbjørn; Sokolov, Konstantin (IMR/PINRO joint report series, Research report, 2002)
      A combined acoustic and bottom trawl survey to obtain indices of abundance and estimates of length and weight at age has been carried out each winter (4-6 weeks in January- March) since 1981 in the Barents Sea. The target ...

    • Investigations on demersal fish in the Barents Sea winter 2002 : detailed report 

      Aglen, Asgeir; Alvsvåg, John; Drevetnyak, Konstantin; Høines, Åge S.; Korsbrekke, Knut; Mehl, Sigbjørn; Sokolov, Konstantin (IMR/PINRO joint report series, Research report, 2002)
      A combined acoustic and bottom trawl survey to obtain indices of abundance and estimates of length and weight at age has been carried out each winter (4-6 weeks in January- March) since 1981 in the Barents Sea. The target ...

    • Investigations on demersal fish in the Barents Sea winter 2003 : detailed report 

      Aglen, Asgeir; Alvsvåg, John; Halland, Tor Ivar; Høines, Åge S.; Nakken, Odd; Russkikh, Alexey; Smirnov, Oleg (IMR/PINRO joint report series, Research report, 2003)
      A combined acoustic and bottom trawl survey to obtain indices of abundance and estimates of length and weight at age has been carried out each winter (4-6 weeks in January-March) since 1981 in the Barents Sea. The target ...

    • Investigations on demersal fish in the Barents Sea winter 2004 : detailed report 

      Aglen, Asgeir; Alvsvåg, John; Høines, Åge S.; Korsbrekke, Knut; Smirnov, Oleg; Zhukova, Nathalia (IMR/PINRO joint report series, Research report, 2004)
      The main results in 2004 were: - The abundance of the 2003 and 2001 year classes of cod are poor, the 2002 and 1999 year classes are below average, while the 2000 and 1998 year classes are near average. - The abundance of ...