Blar i Brage IMR på forfatter "Jakobsen, Tore"

Viser treff 21-40 av 68

    • Laboratory experiments with internal tagging of saithe 

      Jakobsen, Tore; Jakupsstovu, Stein Hjalti (ICES CM Documents;1977/F:22, Working paper, 1977)

    • Loddeundersøkelser med F/F "G. O. Sars" i Barentshavet i februar-mars 1973 

      Jakobsen, Tore; Nakken, Odd (Journal article, 1973)
      During the period 16 February-3 March 1973 R. V. «G. O. Sars» carried out a survey on spawning and prespawning capelin in the Barents Sea. The investigations were a continuation of those reported by Monstad and Midttun ...

    • Loddeundersøkelser med F/F «G. O. Sars» i Barentshavet i februar-mars 1973 

      Jakobsen, Tore; Nakken, Odd (Fisken og havet, Research report, 1973)
      During the period 16 February-3 March 1973 R. V. "G. O. Sars" carried out a survey of spawning and prespawning capelin in the Barents Sea. The investigations were a continuation of those reported by Monstad and Midttun ...

    • Management strategies for the fish stocks in the Barents Sea : proceedings of the 8th PINRO-IMR Symposium, Bergen, 15-16June 1999 

      Jakobsen, Tore (IMR/PINRO Joint Report Series;5/2002, Research report, 2002)

    • Management strategies for the fish stocks in the Barents Sea : proceedings of the 8th PINRO-IMR Symposium, Bergen, 15-16June 1999 

      Jakobsen, Tore (IMR/PINRO Joint Report Series;5/2002, Research report, 2002)

    • Marine indikatorer 

      van der Meeren, Gro; Øigård, Tor Arne; Øien, Nils; Nilssen, Kjell Tormod; Oug, Eivind; Sunnanå, Knut; Jakobsen, Tore; Mehl, Sigbjørn; Kvamme, Cecilie; Torstensen, Else; Stenevik, Erling Kåre; Planque, Benjamin; Helle, Gunnar; Gjøsæter, Jakob; Skiftesvik, Anne Berit; Aglen, Asgeir; Johannessen, Tore; Dommasnes, Are; Naustvoll, Lars-Johan; Moy, Frithjof E.; Falkenhaug, Tone; Melle, Webjørn; Knutsen, Tor; Eriksen, Elena; Jørgensen, Lis Lindal; Fosså, Jan Helge; Bannister, Raymond; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Strand, Øivind; Søvik, Guldborg; Jelmert, Anders; Knutsen, Jan Atle; Enersen, Svein Erik; Edvardsen, Hanne; Kroglund, Tone; Pedersen, Atle; Eikrem, Wenche; Bekkby, Trine; Tveite, Stein (DN-utredning;4-2010, Chapter, 2010-09)
      The Nature Index (NI) is established to get an overview of the state and development of biodiversity within the major ecosystems of Norway. It includes marine, limnic and terrestrial ecosystems. The aim of the index is to ...

    • Marine indikatorer 

      van der Meeren, Gro; Øigård, Tor Arne; Øien, Nils; Nilssen, Kjell Tormod; Oug, Eivind; Sunnanå, Knut; Jakobsen, Tore; Mehl, Sigbjørn; Kvamme, Cecilie; Torstensen, Else; Stenevik, Erling Kåre; Planque, Benjamin; Helle, Gunnar; Gjøsæter, Jakob; Skiftesvik, Anne Berit; Aglen, Asgeir; Johannessen, Tore; Dommasnes, Are; Naustvoll, Lars-Johan; Moy, Frithjof E.; Falkenhaug, Tone; Melle, Webjørn; Knutsen, Tor; Eriksen, Elena; Jørgensen, Lis Lindal; Fosså, Jan Helge; Bannister, Raymond; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Strand, Øivind; Søvik, Guldborg; Jelmert, Anders; Knutsen, Jan Atle; Enersen, Svein Erik; Edvardsen, Hanne; Kroglund, Tone; Pedersen, Atle; Eikrem, Wenche; Bekkby, Trine; Tveite, Stein (DN-utredning;4-2010, Chapter, 2010-09)
      The Nature Index (NI) is established to get an overview of the state and development of biodiversity within the major ecosystems of Norway. It includes marine, limnic and terrestrial ecosystems. The aim of the index is to ...

    • Merkeforsøk med sei i Nord-Norge nord for Lofoten 1970 - 1974 

      Jakobsen, Tore (Fisken og havet, Research report, 1978)
      In 1970-1974, 7913 saithe, predominantly immature, were tagged in northern Norway. By the end of 1976, 1204 tags (15.2 per cent) were reported recaptured. Recaptures of spawning saithe in the North Sea were more frequent ...

    • Merkeforsøk med sei på norskekysten 1975-1977 

      Jakobsen, Tore (Fisken og havet, Research report, 1982)
      In 1975-77, 18 942 saithe were tagged on the Norwegian coast, a continuation of a tagging program which started in 1972. The results confirm the migration pattern indicated by experiments in 1970-74. There is a substantial ...

    • Merkeforsøk med sei på strekningen Møre - Salten 1971-1974 

      Jakobsen, Tore (Fisken og havet, Research report, 1978)
      In 1971-1974, 5222 young saithe were tagged on the Norwegian coast between 62°N and 67°N. By the end of 1976, 622 (12.7 per cent) were reported recaptured. The results show an increasing tendency of a southward migration ...

    • Merkeforsøk med sei på Sunnmøre i november - desember 1974 

      Jakobsen, Tore (Fisken og havet, Research report, 1978)
      In November - December 1974, 2499 young saithe were tagged and released in Norwegian coastal waters at about 62°30'N. By the end of 1976, 370 (14.8%) were reported recovered. The results showed that a mass migration to ...

    • Merkeforsøk med sei på Vestlandet sør for Stad 1972 - 1974 

      Jakobsen, Tore (Fisken og havet, Research report, 1978)
      In 1972, 1973 and 1974, 6291 young saithe were tagged on the Norwegian west coast south of 62°N. By the end of 1976, 1094 (17.4 per cent) were reported recaptured. Of these, 87.7 per cent were found in the North Sea ...

    • Norwegian combined acoustic and bottom trawl surveys for demersal fish in the Barents Sea during winter 

      Jakobsen, Tore; Korsbrekke, Knut; Mehl, Sigbjørn; Nakken, Odd (ICES CM documents, Working paper, 1997)
      A combined acoustic and bottom trawl survey for demersal fish in the Barents Sea has been conducted annually since 1981. The main aim is to map the spatial distribution and obtain indices of abundance (numbers at age) ...

    • Observations on the spawning grounds of the North Sea and Norway coast stocks of saithe 

      Jakobsen, Tore (ICES CM Documents;1974/F:44, Working paper, 1974)

    • Precision in recruitment estimates and its implications on management of demersal fish stocks 

      Jakobsen, Tore (PINRO-IMR Symposium, Conference object, 1995)
      Errors in abundance indices of recruiting year-classes will affect stock predictions. The contribution of recruiting year-classes to the predictions of catch and spawning stock biomass for the stocks of Northeast Arctic ...

    • Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea 

      Nakken, Odd; Hylen, Arvid; Jakobsen, Tore; Nedreaas, Kjell Harald (ICES CM documents, Working paper, 1986)
      An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1986. As a result of strong improvement in the recruitment for both species, most of the echo abundance ...

    • Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1985 

      Nakken, Odd; Hylen, Arvid; Sunnanå, Knut; Jakobsen, Tore (ICES CM documents, Working paper, 1985)
      An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1985. The acoustic data and the biological data from trawl stations were combined in two different ways, ...

    • Preliminary reports of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1984 

      Nakken, Odd; Dalen, John; Hylen, Arvid; Randa, Kjell; Jakobsen, Tore (ICES CM documents, Working paper, 1984)
      An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1984. The two surveys gave different results, both in absolute terms and when changes from the 1983 ...

    • Preliminary results of saithe tagging experiments on Norwegian Coast in 1973 

      Jakobsen, Tore (ICES CM Documents;1976/F:39, Working paper, 1976)

    • Preliminary results of saithe tagging experiments on the Norwegian coast 1975-77 

      Jakobsen, Tore (ICES CM Documents;1981/G:35, Working paper, 1981)
      In 1975-77, 18 942 saithe were tagged on the Norwegian coast, a continuation of a tagging program which started in 1972. The results confirm the migration pattern indicated by experiments in 1970-74. There is a substantial ...