Browsing Published by IMR by Author "Johannesen, Edda"

Now showing items 1-12 of 12

    • BarEcoRe: Barents Sea Ecosystem resilience under global environmental change 

      Planque, Benjamin; Certain, Grégoire; Dalpadado, Padmini; Fossheim, Maria; Gjøsæter, Harald; Johannesen, Edda; Jørgensen, Lis Lindal; Michalsen, Kathrine; Skern-Mauritzen, Mette; Aschan, Michaela; Primicerio, Raul; Wiedmann, Magnus (Rapport fra Havforskningen;Nr. 16-2013, Working paper, 2013)

    • 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 ...

    • Fish diversity data from the Barents Sea Ecosystem Survey 2004-2019 

      Johannesen, Edda; Wienerroither, Rupert; Mørk, Herdis Langøy; Husson, Berengere; Holmin, Arne Johannes; Johnsen, Espen; Dolgov, Andrey; Prokhorova, Tatiana (Rapport fra havforskningen;2021 - 15, Research report, 2021)
      Assessing and improving the status of biodiversity are main targets of international agreements such as the Convention on Biological Diversity and the associated Aichi Biodiversity Targets for 2020. Here we present fish ...

    • Gytefeltskartlegging Nordøstarktisk hyse: Toktnummer 2022609 

      Johannesen, Edda; Gabrielsen, Heidi Kathrine; Frøysa, Håvard G; Holm, Else Agnete; Husebø, Åse; Pedersen, Ronald; Petersen, Marianne; Seim, Silje Elisabeth (Toktrapport;2022 - 8, Research report, 2022)
      Gytekartleggingstokt for nordøstarktisk hyse ble gjennomført 8. -19. april 2022 med FF Kristine Bonnevie. Toktet startet i Bodø og ble avsluttet i Tromsø. Toktet dekket det antatte gyteområdet langs Eggakanten mellom ...

    • Havets ressurser og miljø 2009 

      Gjøsæter, Harald; Dommasnes, Are; Falkenhaug, Tone; Hauge, Marie; Johannesen, Edda; Olsen, Erik; Skagseth, Øystein (Fisken og havet, særnummer, Research report, 2009-04)

    • Hva spiser torsken til middag? 

      Johannesen, Edda; Bogstad, Bjarte; Gjøsæter, Harald (Havforskningsnytt, Working paper, 2004)

    • 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 ...

    • Kunnskap om marine naturressurser i Barentshavet sørøst 

      Fosså, Jan Helge; Aglen, Asgeir; Børsheim, Yngve; Chierici, Melissa; Eriksen, Elena; Hvingel, Carsten; Johannesen, Edda; Jørgensen, Lis Lindal; Knutsen, Tor; Naustvoll, Lars-Johan; Skern-Mauritzen, Mette; Sundet, Jan H.; Vikebø, Frode (Rapport fra Havforskningen;Nr. 21 - 2012, Working paper, 2012-06)
      The status of knowledge of the resources in the Southeastern Barents Sea is reported. The area is dominated by Atlantic watermasses flowing eastwards. The planktonic production is high and secure good feeding conditions ...

    • 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% ...

    • Stimfisk - et viktig element i det dynamiske havmiljøet 

      van der Meeren, Gro; Aglen, Asgeir; Eriksen, Elena; Johannesen, Edda; Knutsen, Tor; Stenevik, Erling Kåre; Tjelmeland, Sigurd; Øien, Nils; Lorentsen, Svein-Håkon (Conference object, 2010-09-23)

    • 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 ...

    • Survey report from the CODFUN 2016114 Barents Sea survey 5.-11. oktober 2016 

      Skaret, Georg; Johannesen, Edda; Fall, Johanna Jennifer Elisabeth; Fiksen, Øyvind (Rapport fra havforskningen;Nr. 41 - 2016, Research report, 2016)
      The survey is part of the project “The cod – capelin interaction in the Barents Sea: spatial dynamics in predator prey overlap and functional response (CODFUN)” funded by the Norwegian Research Council (NRC project number ...