Browsing Brage IMR by Author "Mehl, Sigbjørn"
Now showing items 61-80 of 141
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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 ... -
Flytter torsken?
Stiansen, Jan Erik; Johansen, Geir Odd; Kvamme, Cecilie; Mehl, Sigbjørn; Ådlandsvik, Bjørn; Hannesson, Rögnvaldur; Ekerhovd, Nils Arne (Journal article, 2009-10) -
Fordeling og relativ mengde av norsk arktisk torsk, hausten 1990.
Mehl, Sigbjørn; Godø, Olav Rune; Korsbrekke, Knut ([Toktrapport/Havforskningsinstituttet];, Working paper, 1991) -
Gastric evacuation rate in mackerel (Scomber scombrus L.)
Mehl, Sigbjørn; Westgård, Trond (ICES CM documents, Working paper, 1983)About 1500 mackerel, 25-45 cm in Length, were kept in a net for l0 days. In two experiments the fish were £ed frozen euphausiids -ad. libiturn, and the wet weight of the stomach content determined every second hour for ... -
Harvest Control Rule for Northeast Arctic Saithe: should predation on herring be taken into account?
Mehl, Sigbjørn; Røttingen, Ingolf; Sandberg, Per (Conference object, 2006) -
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) -
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 ... -
Inter-sessional assessment: northeast Arctic saithe
Mehl, Sigbjørn (Working paper, 1999) -
Interactions between cod (Gadus morhua) and deep sea shrimp (Pandalus Borealis) in the Barents Sea
Korsbrekke, Knut; Mehl, Sigbjørn; Hylen, Arvid (ICES CM documents, Working paper, 1991)For some of the most important deep sea shrimp (Pandalus borealis) areas in the Barents Sea the content of shrimp in cod (Gadus morhua) stomachs during the first part of each year in the period 1984-1990 is analysed. Total ... -
Investigations on demersal fish in the Barents Sea (reduced area) winter 1998: Preliminary results for cod
Mehl, Sigbjørn (Working paper, 1998) -
Investigations on demersal fish in the Barents sea winter 1999: Main results
Mehl, Sigbjørn (Working paper, 1999) -
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 2005 : detailed report
Aglen, Asgeir; Alvsvåg, John; Grekov, A.; Høines, Åge S.; Mehl, Sigbjørn; Zhukova, Nathalia (IMR/PINRO joint report series, Research report, 2005)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 ...