Browsing Brage IMR by Author "Godø, Olav Rune"
Now showing items 61-80 of 140
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Første fiskefarty bygd som forskingsplattform
Godø, Olav Rune (Havforskningsnytt, Working paper, 2004) -
Genetisk analyse av merket torsk (Gadus morhua)
Jørstad, Knut Eirik; Reisegg, Jon; Godø, Olav Rune (Fisken og havet, Research report, 1981)Detailed genetic analysis have provided valuable information about the population structure of several commercially important fish species. The investigations have mainly concentrated on the problem on stock identification, ... -
Gode gener ut av garnet
Heino, Mikko; Svåsand, Terje; Godø, Olav Rune (Chronicle, 2011-12-05) -
Habitat selection and competition amongst 0-group gadidae off Mid-Norway
Godø, Olav Rune; Sunnanå, Knut; Gjøsæter, Jakob; Dragesund, Olav (Working paper, 1988)Juvenile gadids and other co-occurring fishes were collected during August in the years 1981 to 1983 at the Møre coast (Mid-Norway). The gears used were pelagic trawl, bottom trawl, Danish seine and beach seine. All species ... -
Immigration and emigration of cod in the spawning areas of Lofoten and Møre
Godø, Olav Rune (ICES CM Documents;1984/G:48, Working paper, 1984)Abundance estimates of the spawning stock of north east Arctic cod have in recent years been given on the basis of acoustic surveys. Migration in and out of the surveyed areas during investigation has been considered as a ... -
Incorporating experimentally derived estimates of survey trawl catchability into the stock assessment process
Somerton, David; Ianelli, Jim; Walsh, Stephen J.; Smith, Stephen; Godø, Olav Rune; Ramm, David (ICES CM Documents;1997/W:5, Working paper, 1997)During the course of the April, 1996, meeting of the Fishing Technology and Fish Behavior Working Group it became clear to many that the methodology for experimentally estimating the catchability of survey trawls might ... -
Instantaneous areal population density of entire Atlantic cod and herring spawning groups and group size distribution relative to total spawning population
Makris, Nicholas C.; Godø, Olav Rune; Yi, Dong Hoon; Macaulay, Gavin; Jain, Ankita Deepak; Cho, Byunggu; Gong, Zheng; Jech, J. Michael; Ratilal, Purnima (Journal article; Peer reviewed, 2018)The wide‐area group behaviour of spawning Atlantic cod and herring is investigated. By a combination of Ocean Acoustic Waveguide Remote Sensing (OAWRS) and conventional sensing methods, first‐look images of the instantaneous ... -
Interaction and integration of observation and models – the EcoFish approach
Godø, Olav Rune; Hauge, Kjellrun Hiis; Hjøllo, Solfrid Sætre; Iversen, Svein A.; Kjesbu, Olav Sigurd; Nash, Richard D.M.; Svendsen, Einar (ICES CM documents;2007/R:14, Working paper, 2007)Ecosystem approach to fisheries management demand new scientific approaches and tools. The EcoFish project is a recently established project that pursues the challenges set by the new approach. It aims at supporting ... -
Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
Hill, Simeon; Atkinson, Angus; Darby, Chris; Fielding, Sophie; Krafft, Bjørn Arne; Godø, Olav Rune; Skaret, Georg; Trathan, Phil N.; Watkins, Jon L. (CCAMLR;WG-EMM-16/21, Conference object, 2016-06-15)This paper is a revised version of WG-EMM-15/28, which uses a question and answer format to explain the management of the Antarctic krill (Euphausia superba) fishery in the subareas 48.1 to 48.4, and current knowledge about ... -
Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
Hill, Simeon L; Atkinson, Angus; Darby, Chris; Fielding, Sofie; Krafft, Bjørn Arne; Godø, Olav Rune; Skaret, Georg; Trathan, Philip; Watkins, John (Peer reviewed; Journal article, 2016) -
Krysningsforsøk mellom skrei og kysttorsk
Jørstad, Knut Eirik; Godø, Olav Rune; Moksness, Erlend; Reisegg, Jon (Fisken og havet, Research report, 1981)Egg and sperm from Arctic and coastal cod (Gadus morhua L.) were collected during the spawning season in the Møre area. The parent fishes were classified to cod race according to type of otoliths, and the eggs were ... -
Managing fishery development in sensitive ecosystems: identifying penguin habitat use to direct management in Antarctica
Trathan, Phil N.; Warwick-Evans, Victoria; Hinke, Jefferson Thomas; Young, Emma F.; Murphy, Eugene J.; Carneiro, Ana Paula B.; Dias, Maria P.; Kovacs, Kit M.; Lowther, Andrew; Godø, Olav Rune; Kokubun, Nobuo; Kim, Jeong-Hoon; Takahashi, Akinori; Santos, Mercedes (Journal article; Peer reviewed, 2018)In the Southern Ocean, the at‐sea distributions of most predators of Antarctic krill are poorly known, primarily because tracking studies have only been undertaken on a restricted set of species, and then only at a limited ... -
Mar-Eco cruise to the mid-Atlantic ridge [5/6 - 3/7, 2004]
Godø, Olav Rune ([Toktrapport/Havforskningsinstituttet];Nr. 19 - 2004, Working paper, 2004) -
Measuring the effect of changes in catchability on the variance of marine survey abundance indices
Pennington, Michael; Godø, Olav Rune (ICES CM Documents;1992/D:9, Working paper, 1992)The average catch per tow by a research vessel survey is often used as an index of abundance. An estimate of the variance of such indices that is based only on the between station variability in catch may underestimate ... -
Mesoscale Eddies Are Oases for Higher Trophic Marine Life
Godø, Olav Rune; Samuelsen, Annette; Macaulay, Gavin J.; Patel, Ruben; Hjøllo, Solfrid Sætre; Horne, John K.; Kaartvedt, Stein; Johannessen, Johnny A. (Journal article; Peer reviewed, 2012-01-07) -
Migration and recruitment to the commercial stock of Greenland halibut, Reinhardtius hippoglossoides (Walbaum), in the Svalbard area
Godø, Olav Rune; Haug, Tore (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1987)Results of stratified bottom trawl surveys in the Svalbard area during the period 1983-1985 show that depth distribution of Greenland halibut is size dependent. Higher proportions of large fish are found in deeper strata. ... -
Migration, mingling and homing of North-East Arctic cod from two separated spawning grounds
Godø, Olav Rune (PINRO-IMR Symposium, Conference object, 1984)Migration of mature North-east Arctic cod tagged in 1975 and 1979-81 on two different spawning areas were studied. The numbers tagged were 11,500 in Lofoten and 3,350 off More, of which 1,088 and 476 recaptures are ... -
Migratory behaviour of reared Norwegian coastal cod and north east Arctic cod
Godø, Olav Rune; Totland, Atle (ICES CM Documents;1995/G:11, Working paper, 1995)This paper is based on experiments to test if differences in migratory behaviour of Norwegian coastal cod and north east Arctic cod is related to parental origin or, alternatively, is related to the environmental experienced ... -
Minimalistic surveys clear the way for priorities in the ecosystem approach
Godø, Olav Rune; Hjellvik, Vidar; Tjøstheim, Dag; Korsbrekke, Knut (ICES CM documents;2009/I:20, Working paper, 2009)Standardized surveys are an integral part of most fish stock assessments. Ship time is expensive and new demands set by the ecosystem approach challenge present survey and sampling strategies with respect to coverage of ... -
Modelling Diurnal Variation in Bottom Trawl Catches and Potential Application in Surveys
Hjellvik, Vidar; Godø, Olav Rune; Tjøstheim, Dag (ICES CM documents, Working paper, 1999)Diurnal variability in bottom trawl survey catches may influence the quality of the survey results when not taken properly into account. This is especia]!.y the case if diurnal effects vary substantiaIly from year to ...