Blar i Brage IMR på forfatter "Dragesund, Olav"
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Mortality of herring during the early larval stage in 1967
Dragesund, Olav; Nakken, Odd (Journal article; Peer reviewed, 1971) -
Mortality of herring during the larval stage
Dragesund, Olav; Nakken, Odd (ICES CM Documents;1968/Sy:4, Working paper, 1968) -
NORFISK - an ecosystem simulation model for studies of the fish stocks off the coast of Norway
Bax, Nicholas J.; Sunnanå, Knut; Godø, Olav Rune; Dragesund, Olav (ICES CM Documents;1984/B:25, Working paper, 1984)A biomass based ecosystem simulation model has been fitted to a restricted area of the Norwegian coastal waters. The model uses a holistic ecosystem approach and data on biomasses and their interaction with each other ... -
The Norwegian Small and Fat Herring Fishery; Changes in Size and Composition
Dragesund, Olav (ICES CM Documents;1961/42, Working paper, 1961) -
Norwegian tagging experiments in the north-eastern North Sea and Skagerak, 1964 and 1965
Dragesund, Olav; Haraldsvik, Steinar (ICES CM Documents;1966/H:27, Working paper, 1966) -
Norwegian tagging experiments in the north-eastern North Sea and Skagerak, 1964 and 1965
Dragesund, Olav; Haraldsvik, Steinar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1968)1. Norwegian herring tagging experiments carried out with internal metal tags in Skagerak in 1964 and 1965 are described. 2. The returns from these taggings up to 31 October 1966 are reviewed and factors affecting the ... -
A Note on the Effect of Electric Fields on Gadus virens
Dragesund, Olav; Leivestad, Helge (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1959)To test electrotaxis earlier experiments have been performed in relatively small tanks. It was felt, therefore that the arrangement with a comparatively big tank would give greater allowance for a more varied behaviour ... -
Observation on distribution and migration of Micromesistius poutassou (Risso, 1810) in the Northeast Atlantic
Dragesund, Olav; Jakupsstovu, Stein Hjalti (ICES CM Documents;1971/H:26, Working paper, 1971) -
Observations on capelin (Mallotus villosus) in Newfoundland waters
Dragesund, Olav; Monstad, Terje (ICES CM Documents;1972/H:12, Working paper, 1972) -
On the herring larvae of Norwegian spring spawners : Effect of time and location of spawning on year-class strength in the period 1959-1965
Dragesund, Olav (ICES CM Documents;1968/Sy:6, Working paper, 1968) -
On the possibility of estimating year-class strength by measuring echo-abundance of 0-group fish
Dragesund, Olav; Olsen, Steinar (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1965)The possibility of estimating the distribution and abundance of 0-group fish by a combination of echo surveying and fishing experiments with pelagic trawl and purse seine is discussed. The existence of scattering layers, ... -
On the possibility of estimating year-class strength by measuring echo-abundance of 0-group fish
Dragesund, Olav; Olsen, Steinar (ICES CM Documents;1964/9, Working paper, 1964) -
Preliminary results of the Norwegian capelin investigations during winter and spring 1971
Dragesund, Olav; Gjøsæter, Jakob; Monstad, Terje (ICES CM Documents;1971/H:24, Working paper, 1971) -
Rapport over tokt med F/F "Johan Hjort" i Norskehavet fra 3/1 - 19/1. 1959
Dragesund, Olav ([Toktrapport/Havforskningsinstituttet];, Working paper, 1959-01-03) -
Recruitment of young Arcto-Norwegian cod and haddock in relation to parent stock size
Hylen, Arvid; Dragesund, Olav (ICES CM Documents;1970/Sy:19, Working paper, 1970) -
Regulering av loddefisket
Dragesund, Olav; Monstad, Terje; Ulltang, Øyvind (Fisken og havet, Research report, 1973)The effect of different regulatory measures on the fishery for Barents Sea capelin was studied by calculating yield per recruit and spawning stock per recruit for several fishing strategies. It is concluded that the ... -
Relationship of parent stock size and year class strength in Norwegian spring spawning herring
Dragesund, Olav; Nakken, Odd (Journal article; Peer reviewed, 1973) -
Relationship of parent stock size and year-class strength in Norwegian spring spawning herring
Dragesund, Olav; Nakken, Odd (ICES CM Documents;1970/Sy:20, Working paper, 1970) -
Remarks on the recovery of tags from the Norwegian herring fishery of north and east Island in 1958
Dragesund, Olav (ICES CM Documents;, Working paper, 1958) -
Return of Norwegian spring spawning herring (Clupea harengus L.) to historical spawning grounds off southwestern Norway
Bergstad, Odd Aksel; Røttingen, Ingolf; Toresen, Reidar; Johannessen, Arne; Dragesund, Olav (ICES CM Documents;1991/H:24, Working paper, 1991)From the mid-1940s to mid-1960s a northward displacement of the spawning areas of the Norwegian Spring Spawning Herring was observed. Further retraction of the population from traditional feeding and spawning grounds ...