Blar i Fisken og havet (1958- ) på forfatter "Jakupsstovu, Stein Hjalti"

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    • 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 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 ...

    • 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 ...

    • Rapport om forsøksfiske etter kolmule i april-mai 1972 

      Hamre, Johannes; Jakupsstovu, Stein Hjalti; Nakken, Odd (Fisken og havet;1972 - Nr. 3, Journal article, 1972)
      Fishing experiments for blue whiting by using two boat midwater trawls were carried out during April and May 1972. The catches amounted to more than 30 tons per hour trawling, and the most serious problem was to get on ...

    • Undersøkelser av kolmule og hydrografi i Norskehavet 12. juli - 11. august 1976 

      Blindheim, Johan; Jakupsstovu, Stein Hjalti (Fisken og havet, Research report, 1976)
      The cruise was carried out by R.V. "G.O.Sars" and mainly confined to the area of the Polar Front. The front was localized by working a grid of CTD stations. The blue whiting stock was found to be dispersed over wide ...

    • Undersøkelser av lodde (Mallotus vollosus) og sil (Ammodytes sp.) ved Vest-Grønland i juni - juli 1974 

      Jakupsstovu, Stein Hjalti; Røttingen, Ingolf (Fisken og havet, Research report, 1975)
      The investigations was carried out with M/S «Havdrøn» as an acoustic survey of the banks and a few selected fjords from Arsukfjord (N 61°1O´, W 78°30´) to Umanakfjord (N 71°00´, W 52°OO´). The capelin stock had recently ...