Browsing Brage IMR by Author "Michalsen, Kathrine"
Now showing items 1-20 of 37
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Age determination of Atlantic halibut (Hippoglossus hippoglossus L.) along the coast of Norway: status, and improvements
Karlson, Stine; Michalsen, Kathrine; Folkvord, Arild (Journal article; Peer reviewed, 2012-11-15)This study re-evaluates the current ageing methodology for the Atlantic halibut, Hippoglossus hippoglossus. The traditional method is through surface readings of otoliths, but, based on new experiments with different ... -
Ambient temperature and distribution of northeast arctic cod
Ottersen, Geir; Michalsen, Kathrine; Nakken, Odd (ICES CM documents, Working paper, 1996)Most studies on the effects of field temperature on fish distribution and population parameters have considered the temperature and its variability at fixed stations or sections rather than the temperature in the actual ... -
Atlantic cod (Gadus morhua)feeding over deep water in the high Arctic
Ingvaldsen, Randi Brunvær; Gjøsæter, Harald; Ona, Egil; Michalsen, Kathrine (Peer reviewed; Journal article, 2017) -
BarEcoRe: Barents Sea Ecosystem resilience under global environmental change
Planque, Benjamin; Certain, Grégoire; Dalpadado, Padmini; Fossheim, Maria; Gjøsæter, Harald; Johannesen, Edda; Jørgensen, Lis Lindal; Michalsen, Kathrine; Skern-Mauritzen, Mette; Aschan, Michaela; Primicerio, Raul; Wiedmann, Magnus (Rapport fra Havforskningen;Nr. 16-2013, Working paper, 2013) -
Barents Sea Ecosystem Resilience under global environmental change 2010-2013
Planque, Benjamin; Johannesen, Edda; Michalsen, Kathrine; Primicerio, Raul; Fossheim, Maria; Ingvaldsen, Randi (ICES CM Documents;2010/Q:27, Working paper, 2010) -
Barents Sea Ecosystem Resilience under global environmental change 2010-2013
Planque, Benjamin; Johannesen, Edda; Michalsen, Kathrine; Primicerio, Raul; Fossheim, Maria; Ingvaldsen, Randi (ICES CM Documents;2010/Q:27, Working paper, 2010) -
Behavioural rhythm of cod during migration in the Barents Sea
Stensholt, Boonchai K.; Michalsen, Kathrine; Godø, Olav Rune (ICES CM Documents;2000/K:34, Working paper, 2000)To assess fish abundance by direct methods and to understand and model species interaction, it is important to have proper knowledge about behavioural patterns. Patterns in vertical distribution might strongly affect ... -
Bidødelighet i fløytlinefisket etter hyse
Michalsen, Kathrine; Bjordal, Åsmund; Soldal, Aud Vold (Rapport fra senter for marine ressurser;Nr. 19 - 1993, Working paper, 1993) -
Catfish - King of the sea
Godø, Olav Rune; Huse, Irene; Michalsen, Kathrine (ICES CM Documents;1995/B:16, Working paper, 1995)During an acoustic tagging experiment on cod in the Barents Sea in March 1995 a hierarchy between different fish species was revealed, and the catfish (Anarhichas sp.) was observed to be dominant in relation to cod and ... -
Datalagringsmerker - torskens ferdskriver
Michalsen, Kathrine (Havforskningstema, Working paper, 2004) -
Distribution of gadoids in the Barents Sea. Impact on survey results
Michalsen, Kathrine (Doctoral thesis, 1999-02) -
Elektronisk merking avslører torskevandringa
Michalsen, Kathrine (Havforskningsnytt, Working paper, 1998) -
Environmental regulation of individual depth on a cod spawning ground
Meager, Justin J.; Skjæraasen, Jon Egil; Karlsen, Ørjan; Løkkeborg, Svein; Mayer, Ian; Michalsen, Kathrine; Nilsen, Trygve; Fernö, Anders (Journal article; Peer reviewed, 2012-12-13)Fine-scale characteristics of spawning grounds may provide the opportunity for cod Gadus morhua L. to regulate their external environment by adjusting their depth. Ultrasonic telemetry was used to study how the environment ... -
Estimates of towing time in surveys
Huse, Irene; Michalsen, Kathrine; Skeide, Roar L. (ICES CM documents, Working paper, 2002)To decide the start and stop time for a survey haul the current method used in Norwegian sampling are the data from the door sensors and height sensors of the trawl. When the trawl has achieved its right geometry, the start ... -
An evaluation of recruitment indices for Northeast Arctic cod (Gadus morhua L.)
Helle, Kristin; Bogstad, Bjarte; Marshall, C. Tara; Michalsen, Kathrine; Ottersen, Geir; Pennington, Michael (ICES CM documents, Working paper, 1999)Indices of the abundance of Northeast Arctic cod (Gadus morhua L.) for various life stages were compared in order to determine the earliest stage at .which year-class strength is established. The indices considered are: ... -
Feeding in a heterogeneous environment: spatial dynamics in summer foraging Barents Sea cod
Johannesen, Edda; Lindstrøm, Ulf; Michalsen, Kathrine; Skern-Mauritzen, Mette; Fauchald, Per; Bogstad, Bjarte; Dolgov, Andrey V. (Journal article; Peer reviewed, 2012-07-03)Cod Gadus morhua are important predators in many ecosystems in the North Atlantic, but their ecological importance has diminished in many areas due to stock size reductions. In contrast, the Barents Sea cod stock is ... -
Feeding of mature cod (Gadus morhua) on the spawning grounds in Lofoten
Michalsen, Kathrine; Johannesen, Edda; Bogstad, Bjarte (Journal article; Peer reviewed, 2008-03-19)Many authors state that cod (Gadus morhua) do not feed during the spawning period. However, this more or less established fact has rarely been investigated in the field. Here, the content of stomachs from Northeast Arctic ... -
Growth of northeast arctic cod in relation to ambient temperature
Michalsen, Kathrine; Ottersen, Geir; Nakken, Odd (ICES CM documents, Working paper, 1996)In the present study temperature related changes in horizontal distribution are described and the influence of temperature on the growth of Northeast Arctic cod is interpreted. Data from acoustic-and bottom trawl surveys ... -
Havets ressurser 2003
Michalsen, Kathrine (Fisken og havet, særnummer;1-2003, Research report, 2003-02) -
Havets ressurser 2004
Michalsen, Kathrine (Fisken og havet, særnummer;1-2004, Research report, 2004-03)