Browsing Brage IMR by Author "Jakupsstovu, Stein Hjalti"
Now showing items 1-20 of 30
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An intership sonar calibration experiment in the Norwegian Sea
Misund, Ole Arve; Jakupsstovu, Stein Hjalti (ICES CM Documents;1996/B:22, Working paper, 1996)When migrating in the Norwegian Sea in spring and summertime, the Norwegian spring spawning herring will be surveyed by vessels from four nations. Because the herring may occur in schools close to the surface, use of ... -
Detection of internally tagged fish with special application to the atlanto-scandian herring
Gytre, Trygve; Jakupsstovu, Stein Hjalti (ICES CM Documents;1977/H:20, Working paper, 1977)The paper describes the operating principle and use of a new machine for detection and sorting of internally tagged fish. The machine has been used in the calculation of the Atlanto-Scandian herring stock size. Fixed ... -
Hydrografiske undersøkelser og kartlegging av plankton og fiskefordeling i Nordsjøen og Norskehavet i juni - juli 1972
Iversen, Svein A.; Jakupsstovu, Stein Hjalti; Lahn-Johannessen, John; Danielssen, Didrik S. (Fisken og havet, Research report, 1974)In June—July 1972 R. V. «G. O. Sars» carried out a survey in the northern North Sea, Skagerrak and the adjacent waters of the Norwegian Sea. The general features of the hydrography was determined, the relative abundance ... -
Kolmuleundersøkelser i Nordsjøen 1970 -1973
Jakupsstovu, Stein Hjalti (Fisken og havet, Research report, 1974)Samples from commercial trawl landings for reductional purposes show that the Norwegian catches recorded as Norway pout in the fishery statistics consist of 50—70 prosent blue whiting during the autumn and 30—60 prosent ... -
Kolmuleundersøkelser i Norskehavet i april - mai 1971
Jakupsstovu, Stein Hjalti; Nakken, Odd (Fisken og havet;1971 - Nr.3, Research report, 1971)On a cruise with R.V."G.O.Sars" from 24 April to 9 May dense concentrations of blue whiting were found between the Faroes and Shetland and in the Norwegian Deep east of Tampen. Further north the fish were scattered. A ... -
Kolmuleundersøkelser i Norskehavet i april-mai 1971
Jakupsstovu, Stein Hjalti; Nakken, Odd (Fisken og havet, Research report, 1972)On a cruise with R/V "G. O. Sars" from Z4 April to 9 May dense concentrations of blue whiting were found between the Faroes and Shetland and in the Norwegian Deep east of Tampen. Further north the fish were scattered. A ... -
Kolmuleundersøkelser i Norskehavet i april-mai 1971
Jakupsstovu, Stein Hjalti; Nakken, Odd (Journal article, 1971)On a cruise with R/V "G. O. Sars" from 24 April to 9 May dense concentrations of blue whiting were found between the Faroes and Shetland and in the Norwegian Deep east of Tampen. Further north the fish were scattered. A ... -
Kolmuleundersøkelser i Norskehavet og nordvest for De britiske øyer i januar - februar 1973
Blindheim, Johan; Haug, Anders; Jakupsstovu, Stein Hjalti; Ljøen, Rikard; Revheim, Arne (Fisken og havet, Research report, 1973)Blue whiting investigations were carried out at the Møre— Helgeland plateau and in the Faero—Shetland areas during the period 8 January to 9 February. Most of the blue whiting were localized in the Faero— Shetland area. ... -
Kolmuleundersøkelser med F/F "G. O. SARS" til Norskehavet 12. - 29. juni 1970
Blindheim, Johan; Jakupsstovu, Stein Hjalti; Midttun, Lars; Vestnes, Gudmund (Fisken og havet;1971 - Nr. 1, Research report, 1971) -
Kolmuleundersøkelser nordvest av De britiske øyer i mai 1975 og mars - april 1976
Jakupsstovu, Stein Hjalti; Midttun, Lars (Fisken og havet, Research report, 1977)The distribution and abundance of blue whiting were observed by direct hydroacoustic methods on the R.V. "G.O. Sars". In 1975 the area between St. Kilda and the Faroes was investigated. The best concentrations were ... -
Kolmuleundersøkelser nordvest for De britiske øyer i februar - mars 1972
Jakupsstovu, Stein Hjalti; Midttun, Lars (Fisken og havet;1972 - Nr. 2, Research report, 1972)On a cruise with the R.V. «G. 0. Sars» from 28 February to 26 March 1972 the distribution and abundance of blue whiting northeast of the British Isles were observed by direct hydroacoustic methods. The stock size was ... -
Kolmuleundersøkelser nordvest for De britiske øyer i mars - april 1973
Jakupsstovu, Stein Hjalti; Olsen, Kjell; Midttun, Lars (Fisken og havet, Research report, 1973)On a cruise with R. V. «G. O. Sars» from 12 March to 12 April 1973 the distribution and abundance of blue whiting northwest of the British Isles were again observed by direct hydroacoustic methods. It is concluded that ... -
Laboratorieforsøk med innvendig merking av sei
Jakobsen, Tore; Jakupsstovu, Stein Hjalti (Fisken og havet, Research report, 1977)Recovery of internal tags during the filleting process would create new possibilities for tagging experiments on several species, in Norwegian fisheries primarily cod, haddock, saithe, herring and mackerel. In connection with ... -
Laboratory experiments with internal tagging of saithe
Jakobsen, Tore; Jakupsstovu, Stein Hjalti (ICES CM Documents;1977/F:22, Working paper, 1977) -
Loddeundersøkelser i Barentshavet i november - desember 1971
Jakupsstovu, Stein Hjalti; Midttun, Lars; Monstad, Terje; Nakken, Odd; Vestnes, Gudmund (Fisken og havet, Research report, 1972)Relative echo abundance of capelin is given. Mainly young immature capelin was found in the area Thompson Ground — southern part of the Sentral Bank. The population in the area between the Sentral Bank and the Skolpen Bank ... -
Loddeundersøkelser i Barentshavet i november- desember 1971
Jakupsstovu, Stein Hjalti; Midttun, Lars; Monstad, Terje; Nakken, Odd; Vestnes, Gudmund (Fisken og havet, Research report, 1972)Relative echo abundance of capelin is given. Mainly young immature capelin was found in the area Thompson Ground - southern part of the Sentral Bank. The population in the area between the Sentral Bank and the Skolpen ... -
Loddeundersøkelser i Barentshavet i november-desember 1971
Jakupsstovu, Stein Hjalti; Midttun, Lars; Monstad, Terje; Nakken, Odd; Vestnes, Gudmund (Journal article, 1972)Relative echo abundance of capelin is given. Mainly young immature capelin was found in the area Thompson Ground - Southern part of the Sentral Bank. The population in the area between the Sentral Bank and the Skolpen Bank ... -
Norwegian investigations on blue whiting (Micromesistius poutassou, Risso 1810) in the North Sea 1970 - 1973
Jakupsstovu, Stein Hjalti (ICES CM Documents;1974/H:9, Working paper, 1974) -
Observation on distribution and migration of Micromesistius poutassou (Risso, 1810) in the Northeast Atlantic
Dragesund, Olav; Jakupsstovu, Stein Hjalti (ICES CM Documents;1971/H:26, Working paper, 1971) -
On the formation of the first winter zone in blue whiting otoliths.
Jakupsstovu, Stein Hjalti (ICES CM Documents;1979/H:7, Working paper, 1979)Otolithes of juvenile blue whiting when recruiting to the industrial fishery in the Norwegian Deep in early autumn (August-October 1970-72) could be divided into two groups, without or with a very insignificant hyaline ...