Browsing Fisken og havet (1958- ) by Author "Johannesen, Edda"
Now showing items 1-4 of 4
-
Egner vintertoktet seg til overvåking av endringer i fiskesamfunnet i Barentshavet? : en gjennomgang av metodikk og data fra 1981-2007
Johannesen, Edda; Wenneck, Thomas de Lange; Høines, Åge S.; Aglen, Asgeir; Mehl, Sigbjørn; Mjanger, Hildegunn; Fotland, Åge; Halland, Tor Ivar; Jakobsen, Tore (Fisken og havet, Research report, 2009-12-10)The winter survey (1981-) is the longest bottom trawl time series in the Barents Sea. The survey is used as tuning series in cod and haddock assessment, but change and ecosystem-based management, necessitates the study of ... -
Investigations on demersal fish in the Barents Sea winter 2006
Aglen, Asgeir; Alvsvåg, John; Høines, Åge S.; Johannesen, Edda; Mehl, Sigbjørn (Fisken og havet, Research report, 2008)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 ... -
Report on the diet of the blue whiting in the Barents Sea in the summer 2005 and in the winters 2002 and 2006
Beck, Inger Marie; Eriksen, Kirsti Børve; Heino, Mikko; Johannesen, Edda; Olsen, Erik (Fisken og havet, Research report, 2006)We analyzed stomach content of blue whiting in the Barents Sea in February-March 2002 and 2006, and in August-September 2005. Krill was the most important prey for blue whiting in the Barents Sea, and constituted about 90% ... -
StoX applied to cod and haddock data from the Barents Sea NOR-RUS ecosystem cruise in autumn - Swept area abundance, length and weight at age 2004-2017
Johannesen, Edda; Johnsen, Espen; Johansen, Geir Odd; Korsbrekke, Knut (Fisken og Havete;2019 - 6, Research report, 2019)North East Arctic cod and haddock are the largest stocks of these species in the world. Data from the Barents Sea NOR-RUS ecosystem cruise (BESS) in autumn is used as input to the assessment of these species. Here, we used ...