Browsing Brage IMR by Author "Øritsland, Torger"
Now showing items 1-20 of 29
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Aerial and visual surveys to estimate harp seal pup production in the Greenland Sea
Øien, Nils; Øritsland, Torger (ICES CM documents, Working paper, 1993)In March-April 1991 a combined expedition using fixed-wing aircraft and ship-borne helicopter was carried out to estimate harp seal pup production in the Greenland Sea (the West Ice). Photographs were taken from the ... -
Current problems and research related to interactions between marine mammals and fisheries in Norwegian coastal and adjacent waters
Bjørge, Arne; Christensen, Ivar; Øritsland, Torger (ICES CM documents, Working paper, 1981)Current research and provisional results on the food items and feeding rates of killer whales, minke whales, grey seals, common seals and harp seals are presented. Commercial fish species constitute the major part of the ... -
Feeding habits of northeast atlantic harp seal (Phoca groenlandica) along the summer ice edge of the Barents Sea
Lydersen, Christian; Angantyr, Lars Anker; Wiig, Øystein; Øritsland, Torger (ICES CM documents, Working paper, 1989)Stomachs from 58 harp seals Phoca groenlandica from the northern parts of the Barents Sea were collected between August 20 and September 5 1987. Fiftysix of the stomachs contained identifiable contents. The amphipod ... -
Feeding habits of northeast atlantic Harp seal (Phoca groenlandica) along the Summer Ice Edge of the Barents Sea
Lydersen, Christian; Angantyr, Lars Anker; Wiig, Øystein; Øritsland, Torger (Journal article; Peer reviewed, 1991)Stomachs from 58 harp seals (Phoca groenlandica) from the northern part of the Barents Sea were collected between August 20 and September 5, 1987. Fifty-six of the stomachs contained identifiable remains. The amphipod ... -
Klappmysshunnens forplantningsbiologi
Øritsland, Torger (Fisken og havet;1964 - Nr. 1, Research report, 1964) -
Marine mammals and petroleum activities in Norwegian waters
Griffiths, D.J.; Øritsland, Nils Are; Øritsland, Torger (Fisken og havet - Serie B, Working paper, 1987) -
Norsk fangst og undersøkelse av sel i 1994 (Norwegian catches and investigations of seals in 1994)
Øritsland, Torger (Fisken og havet, Research report, 1995)Four Norwegian vessels caught a total of 17621 harp and 492 hooded seals in the West Ice (Greenland Sea) and the East Ice (Barents Sea) in 1994. The Norwegian Marine Mamma1 Research Programme was brought to an end in an ... -
Norsk fangst og undersøkelse av sel i 1995 (Norwegian catches and investigations of seals in 1995)
Øritsland, Torger (Fisken og havet, Research report, 1996)Three Norwegian vessels caught a total of 15070 harp and 933 hooded seals in the West Ice (Greenland Sea) and the East Ice (Barents Sea) in 1995. These catches include 945 weaned pups and 22 adult harp seals taken under ... -
Norsk fangst og undersøkelser av sel i 1987
Øritsland, Torger (Rapport SPS, Working paper, 1987-11-12) -
Norway: Seals. In: Marine mammals Committee
Øritsland, Torger (ICES CM documents, Working paper, 1974) -
Norway: Seals. In: Marine Mammals Committee
Øritsland, Torger (ICES CM documents, Working paper, 1978) -
Norwegian Seal Research
Øritsland, Torger (ICES CM documents, Working paper, 1967) -
Publication of catch statistics and routine biological data for North Atlantic seals.
Øritsland, Torger (ICES CM documents, Working paper, 1974) -
Recent age compositions and aberrant migration patterns of the Barents Sea stock of harp seals Phoca groenlandica
Nilssen, Kjell Tormod; Haug, Tore; Øritsland, Torger; Lindblom, Lotta; Kjellqwist, Sten Anders (ICES CM Documents;1996/N:4, Working paper, 1996)Since 1978, and in particular in 1986-1988, large numbers of harp seals Phoca groenlandica have invaded coastal waters of North Norway during winter and spring. After 1988 the harp seal invasions have been restricted to ... -
Seals in the Northeast Atlantic and interactions with fisheries
Øritsland, Torger (Comité artique international (CAI): Commentary, Working paper, 1990-02) -
Selmerking i Vesterisen 1989
Øritsland, Torger; Folkow, Lars (Rapport SPS, Working paper, 1989-05-05) -
Selundersøkelser i det nordlige Atlanterhav i 1972
Benjaminsen, Terje; Bergflødt, Bjørn; Frøland, Alfred; Huse, Ingvar; Øritsland, Torger; Påsche, A. (Fisken og havet, Research report, 1973)Accounts are given of field work at Newfoundland—Labrador, in the Jan Mayen area of the Greenland Sea (West Ice), in the southeastern Barents Sea (East Ice) and in the Denmark Strait to collect material and data for ... -
Selundersøkelser i det nordlige Atlanterhav i 1973
Benjaminsen, Terje; Bergflødt, Bjørn; Øritsland, Torger (Fisken og havet, Research report, 1973)Accounts are given of weather and ice conditions, the distribution of seals and sampling of harp and hooded seals at New foundland-Labrador and in the Jan Mayen area of the Greenland Sea through the sealing season in ... -
Selundersøkelser i det nordlige Atlanterhav i 1974
Benjaminsen, Terje; Bergflødt, Bjørn; Frøland, Alfred; Huse, Ingvar; Øritsland, Torger (Fisken og havet, Research report, 1975)Accounts are given of weather and ice conditions, the distribution of seals and of sampling of harp and hooded seals at Newfoundland-Labrador, in the West Ice (at Jan Mayen), in the East Ice (in the Eastern Barents Sea) ... -
Selundersøkelser i det nordlige Atlanterhav i 1974
Benjaminsen, Terje; Bergflødt, Bjørn; Frøland, Alfred; Huse, Ingvar; Øritsland, Torger (Fisken og havet;1975 - Nr.2, Research report, 1975)Accounts are given of weather and ice conditions, the distribution of seals and of sampling of harp and hooded seals at Newfoundland-Labrador, in the West Ice (at Jan Mayen), in the East Ice (in the Eastern Barents Sea) ...