Blar i Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) på forfatter "Gjøsæter, Jakob"
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Abundance and production of lanternfish (Myctophidae) in the western and northern Arabian Sea
Gjøsæter, Jakob (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981)The mesopelagic fauna of the western and northern Arabian Sea between Mogadisco and the Indo-Pakistanean border was studied on cruises with R.V. "Dr. Fridtjof Nansen" during 1975-1976. A deep scattering layer was observed ... -
Ecological investigations on the spawning grounds of the Barents Sea capelin
Sætre, Roald; Gjøsæter, Jakob (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1975)SÆTRE, R. and GJØSÆTER, J. 1975. Ecological investigations on the spawning grounds of the Barents Sea capelin. FiskDir. Skr. Ser. HavUnders., 16: 203-227. A programme to study the reproduction of the Barents Sea capelin ... -
Estimates of stock size and reproduction of the Barents Sea capelin in 1970-1972
Dragesund, Olav; Gjøsæter, Jakob; Monstad, Terje (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1973)DRAGESUND, O., GJØSÆTER, J. and MONSTAD, T. 1973. Estimates of stock size and reproduction of the Barents Sea capelin in 1970-1972. FiskDir. Skr. Ser. HavUnders., 16: 105-139. The distribution and migration of young ... -
Fecundity and egg size of spring spawning Barents Sea capelin
Gjøsæter, Jakob; Monstad, Terje (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1973)Fecundity of Barents Sea capelin was studied in 1971 and 1972. No differences were found between these two years. The regression line log F = 3.4871 x log L - 0.2049 was fitted to the whole material. This is in good ... -
Growth, production and reproduction of the myctophid fish Benthosema glaciale from western Norway and adjacent seas
Gjøsæter, Jakob (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981)Age, growth, mortality, production and reproduction were studied on material of Benthosema glaciale from some fjords of western Norway and from the adjacent ocean. Samples were collected using pelagic trawls and Icaacs-Kidd ... -
Life history and ecology of Maurolicus muelleri (Gonostomatidae) in Norwegian waters
Gjøsæter, Jakob (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981) -
Life history and ecology of the myctophid fish Notoscopelus elongatus kroeyeri from the northeast Atlantic
Gjøsæter, Jakob (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981) -
Mesopelagic fish off Mozambique
Gjøsæter, Jakob; Beck, Inger Marie (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981)The mesopelagic fauna off Mozambique was studied on five cruises of R.V. "Dr. Fridtjof Nansen" during 1977 and 1978. It primarily consisted of Myctophids. At most stations, Benthosema fibulatum or Diaphus spp. were ... -
Observations on the embryonic development of capelin (Mallotus villosus MÜLLER) from the Barent Sea
Gjøsæter, Harald; Gjøsæter, Jakob (Fiskeridirektoratets skrifter, serie havundersøkelser;vol 18, no. 2, Research report, 1986)The embryonic development of the Barents Sea capelin is described, with emphasis of characteristic features which can be applied in the ageing of eggs. The development is described for three different temperatures observed ... -
Primary growth rings in otoliths of Barents Sea capelin
Gjøsæter, Jakob; Monstad, Terje (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1985)Formation of primary growth rings in otoliths of Barents Sea capelin was studied both for fish of known age, from rearing in a basin, and for field-sampled fish. The numbers of growth rings were related to fish length ...