Now showing items 1-20 of 119

    • 0-group saithe and herring off the Norwegian coast in 1986 and 1987 [HELP 9] 

      Nedreaas, Kjell Harald; Smedstad, Odd M. (help, Research report, 1987)
      In 1985 investigations were started to try to measure the abundance of 0-group saithe before the main concentrations entered the inshore waters. In 1986 the investigation area were expanded to also cover the eastern part ...
    • 0-group saithe and herring off the Norwegian coast in April - May 1988 [HELP 20] 

      Mehl, Sigbjørn; Nedreaas, Kjell Harald; Smedstad, Odd M.; Westgård, Trond (help, Research report, 1988)
      In 1985 investigations were started to try to measure the abundance of 0-group saithe before the main concentrations entered the inshore waters. In 1986-1988 the investigation area was. expanded to also cover the eastern ...
    • A model simulating the effect of sampling strategy on stock assessment of gadoids in sub-areas I and II 

      Jakobsen, Tore; Nedreaas, Kjell Harald (ICES CM Documents;1986/G:69, Working paper, 1986)
      In the northeast Atlantic, management advice for fisheries is usually based on Virtual Population Analysis, yield per recruit, and predictions of catch and biomass. For these calculations, age distributions and weigth-at-age ...
    • Abundance and distribution of postlarvae in the 0-group saithe survey in the north-east Arctic in 1985 

      Nedreaas, Kjell Harald (ICES CM Documents;1986/G:87, Working paper, 1986)
      From 11 May to 31 May 1985 a pelagic trawl survey was carried out outside the Norwegian coast north of 62° N. The purpose of this pilot survey was to examine the possibility of getting useful information about the year ...
    • Acoustic abundance of spawning Northeast Arctic cod in the Lofoten survey spring 2003: Preliminary results 

      Mehl, Sigbjørn; Nedreaas, Kjell Harald; Salthaug, Are (Working paper, 2003)
    • Age determination of Northeast Atlantic Sebastes species 

      Nedreaas, Kjell Harald (Journal article; Peer reviewed, 1990)
      Uncertainty exists concerning the validity of age determination methods for redfish species owing to the various procedures in use. North American scientists routinely use otoliths, whilst European scientists have preferred ...
    • Age reading from Northeast Arctic cod otoliths through 50 years of history 

      Zuykova, N.V.; Koloskova, V.P.; Mjanger, Hildegunn; Nedreaas, Kjell Harald; Senneset, Harald; Yaragina, Natalia A.; Ågotnes, Per; Aanes, Sondre (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)
    • Age reading from Northeast Arctic cod otoliths through 50 years of history 

      Zuykova, N.V.; Koloskova, V.P.; Mjanger, Hildegunn; Nedreaas, Kjell Harald; Senneset, Harald; Yaragina, Natalia A.; Ågotnes, Per; Aanes, Sondre (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)
    • Age reading from Northeast Arctic cod otoliths through 50 years of history [presentation] 

      Zuykova, N.V.; Ågotnes, Per; Koloskova, V.P.; Mjanger, Hildegunn; Nedreaas, Kjell Harald; Senneset, Harald; Yaragina, Natalia A.; Aanes, Sondre (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)
    • Age reading from Northeast Arctic cod otoliths through 50 years of history [presentation] 

      Zuykova, N.V.; Ågotnes, Per; Koloskova, V.P.; Mjanger, Hildegunn; Nedreaas, Kjell Harald; Senneset, Harald; Yaragina, Natalia A.; Aanes, Sondre (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007)
    • Age readings of Sebastes marinus otoliths: bias and precision between readers and otolith preparation methods 

      Stransky, Christoph; Guðmundsdóttir, Sif; Sigurdsson, Thorsteinn; Lemvig, Svend; Nedreaas, Kjell Harald (ICES CM documents, Working paper, 2001)
      This study presents a comparative age reading on Sebastes marinus from the Icelandic shelf within an otolith exchange program between institutes in Germany, Iceland and Norway. Out of a series of 212 otolith pairs, ...
    • Akustisk mengdemåling av gytebestanden av skrei: Lofoten mars-april 2003 

      Mehl, Sigbjørn; Nedreaas, Kjell Harald (Toktrapport/Havforskningsinstituttet, Working paper, 2003)
    • Alien plants, animals, fungi and algae in Norway: an inventory of neobiota 

      Sandvik, Hanno; Dolmen, Dag; Elven, Reidar; Falkenhaug, Tone; Forsgren, Elisabet; Hansen, Haakon; Hassel, Kristian; Husa, Vivian; Kjærstad, Gaute; Ødegaard, Frode; Pedersen, Hans Christian; Solheim, Halvor; Stokke, Bård Gunnar; Åsen, Per Arvid; Åström, Sandra Charlotte Helene; Brandrud, Tor Erik; Elven, Hallvard; Endrestøl, Anders; Finstad, Anders Gravbrøt; Fredriksen, Stein; Gammelmo, Øivind; Gjershaug, Jan Ove; Gulliksen, Bjørn; Hamnes, Inger Sofie; Hatteland, Bjørn Arild; Hegre, Hanne; Hesthagen, Trygve H.; Jelmert, Anders; Jensen, Thomas Correll; Johnsen, Stein Ivar; Karlsbakk, Egil; Magnusson, Christer; Nedreaas, Kjell Harald; Nordén, Björn; Oug, Eivind; Pedersen, Oddvar; Pedersen, Per Anker; Sjøtun, Kjersti; Skei, Jon Kristian; Solstad, Heidi; Sundheim, Leif; Swenson, Jon; Syvertsen, Per Ole; Talgø, Venche; Vandvik, Vigdis; Westergaard, Kristine Bakke; Wienerroither, Rupert; Ytrehus, Bjørnar; Hilmo, Olga; Henriksen, Snorre; Gederaas, Lisbeth (Journal article; Peer reviewed, 2019)
      We present the results of an inventory and status assessment of alien species in Norway. The inventory covered all known multicellular neobiota, 2496 in total, 1039 of which were classified as naturalised. The latter ...
    • Alien species in Norway: results from quantitative ecological impact assessments 

      Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article, 2020)
      1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ...
    • Alien species in Norway: results from quantitative ecological impact assessments 

      Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Peer reviewed; Journal article, 2020)
      1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ...
    • Applying global best practices for estimating unreported catches in Norwegian fisheries under a discard ban 

      Clegg, Thomas L; Kennelly, Steven J.; Blom, Geir; Nedreaas, Kjell Harald (Peer reviewed; Journal article, 2020)
      In addition to their role as a fisheries management tool, discard bans can be effective in improving knowledge of total catches via the requirement to land and report all catches. This shifts the focus to understanding the ...
    • Assessing incidental bycatch of seabirds in Norwegian coastal commercial fisheries: Empirical and methodological lessons 

      Fangel, Kirstin; Aas, Øystein; Vølstad, Jon Helge; Bærum, Kim Magnus; Christensen-Dalsgaard, Signe; Nedreaas, Kjell Harald; Overvik, Modolf; Wold, Line Camilla; Anker-Nilssen, Tycho (Journal article; Peer reviewed, 2015-06-23)
      Unintentional bycatch, waterbirds, small vessel fishery, gillnetts, longlines, Northeast Atlantic
    • Betyr en økning i gytebestanden i dag at bestanden av norsk-arktisk torsk vil øke fremover? 

      Nedreaas, Kjell Harald; Bjordal, Åsmund (Havforskningsnytt, Working paper, 2002)
    • Biological and economic implications of a multi-gear fishery for greenland halibut (Reinhardtius hippoglossoides) 

      Nedreaas, Kjell Harald; Sandberg, Per; Veim, Anne Kjos (ICES CM Documents;1995/S:5, Working paper, 1995)
      This paper focuses on the level and distribution of fishing mortality in a multigear fishery, and its effect on biological and economic parameters. The Greenland halibut stock in ICES Sub-areas I and Il is at a historically ...
    • Bruk av pelagisk trål til prøvetaking av blåkveite og snabeluer [6/8 - 19/9, 2007] 

      Gamst, Kjell Arne; Nedreaas, Kjell Harald; Vollen, Tone ([Toktrapport/Havforskningsinstituttet];Nr. 18 - 2007, Working paper, 2007)