Blar i Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) på forfatter "Nakken, Odd"
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Abundance estimates of the spawning stock of blue whiting (Micromesistius poutassou (Risso, 1810)) in the area west of the British Isles in 1972-1974
Nakken, Odd; Buzeta, Ramon (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1975)An analysis is made on the blue whiting data from the echo surveys conducted during 1972-1974 for assessment of the spawning stock west of the British Isles. Acoustic data are evaluated using a length dependent density ... -
Investigations on diel vertical migration of 0-group fish in the Barents Sea
Beltestad, Arvid K.; Smedstad, Odd M.; Nakken, Odd (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1975)In August-September diel vertical migration of 0-group fish was studied in the Barents Sea. Redfish and capelin had different vertical migration patterns. 0-group redfish were found at the surface at dark and spread in ... -
On acoustic identification, sizing and abundance estimation of fish
Midttun, Lars; Nakken, Odd (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1971)A method using the fish angle (i.e. the change in target strength with fish aspect) for identification purposes is described. Significant differences in fish angle between cod and coalfish have been observed at sea. The ... -
On the hydrography of the shelf waters off Moere and Helgeland
Nakken, Odd; Ljøen, Rikard (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969) -
On the hydrography of the shelf waters off Møre and Helgeland
Ljøen, Rikard; Nakken, Odd (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1969)1. The distribution of temperatures and salinities off the west coast of Norway have been studied, based on observations from cruises in February 1956 and March 1968. 2. The main flow of Coast water follows the edge of ...