Browsing Brage IMR by Author "Olsen, Kjell"
Now showing items 1-16 of 16
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Directional responses in herring to sound and noise stimuli
Olsen, Kjell (ICES CM Documents;1969/B:20, Working paper, 1969) -
Fish behaviour and acoustic sampling
Olsen, Kjell (Conference object, 1990)Fish behaviour may lead in several ways to uncertainties in acoustic abundance estimation. Practical echo-surveying work faces a number of situations where aspects of fish behaviour may be of importance. Unfavourable ... -
Fish behaviour in relation to long lines observed by TV
Fernö, Anders; Johannessen, Arne; Olsen, Kjell; Solemdal, Per; Tilseth, Snorre; Valdemarsen, John Willy (ICES CM Documents;1976/B:38, Working paper, 1976) -
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 ... -
Loddeundersøkelser i Barentshavet i november - desember 1973
Dommasnes, Are; Olsen, Kjell; Shleinik, V. (Fisken og havet, Research report, 1974)A joint investigation on the distribution of adult capelin was carried out in November-December 1973 by the Norwegian research vessel «G. O. Sars» and the Soviet Union research vessels «Poisk» and "Akademik Knipovich". Adult ... -
Observed avoidance behaviour in herring in relation to passage of an echo survey vessel.
Olsen, Kjell (ICES CM Documents;1979/B:18, Working paper, 1979) -
Orientation measurements of cod in Lofoten obtained from underwater photographs and their relation to target strength
Olsen, Kjell (ICES CM Documents;1971/B:17, Working paper, 1971) -
Rapport om evaluering av Simrad sonar dataskjerm på operativt snurpefartøy
Olsen, Kjell (Fisken og havet - Serie B, Working paper, 1972) -
Report on a cruise by the R.V. "G. O. Sars" to the Azores and the coast of Portugal November/December 1975
Dias, M.L.; Olsen, Kjell; Østvedt, Ole Johan (ICES CM Documents;1976/J:12, Working paper, 1976) -
Some experiments on the effect on target strength of fish undertaking vertical migrations
Olsen, Kjell (ICES CM Documents;1976/B:42, Working paper, 1976) -
Target strength measurements of fish
Nakken, Odd; Olsen, Kjell (Journal article; Peer reviewed, 1977)During the summer of 1971, target strength measurements of fish were made at two frequencies, 38 kHz and 120 kHz. The relationships between dorsal aspect target strength and fish length were worked out for four species. ... -
Target strength measurements of fish
Nakken, Odd; Olsen, Kjell (Symposium on acoustic methods in fisheries research, Bergen, Norway, 19-22 June, 1973, Conference object, 1973) -
The significance of fish behaviour in the evaluation of hydroacoustic survey data
Olsen, Kjell (ICES CM Documents;1981/B:22, Working paper, 1981) -
Toktrapport [12/9 - 22/9, 1973]
Olsen, Kjell; Nygaard, Jan E. ([Toktrapport/Havforskningsinstituttet];, Working paper, 1973-09-12) -
Toktrapport [3/12 - 14/12, 1979]
Olsen, Kjell ([Toktrapport/Havforskningsinstituttet];, Working paper, 1980-01-02) -
Torsk i fjord
Olsen, Kjell (Nordiske seminar- og arbejdsrapporter;1991:504, Conference object, 1991)