Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Gjøsæter, Harald"
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A comparison of biological trends from four marine ecosystems: synchronies, differences, and commonalities
Link, Jason S.; Stockhausen, William; Skaret, Georg; Overholtz, William; Megrey, Bernard A.; Gjøsæter, Harald; Gaichas, Sarah; Dommasnes, Are; Falk-Petersen, Jannike; Aydin, Kerim; Kane, Joseph; Mueter, Franz; Friedland, Kevin; Hare, Jon (ICES CM documents;2007/D:09, Working paper, 2007) -
A comparison of community and trophic structure in five marine ecosystems based on energy budgets and system metrics
Gaichas, Sarah; Skaret, Georg; Falk-Petersen, Jannike; Link, Jason S.; Overholtz, William; Megrey, Bernard A.; Gjøsæter, Harald; Stockhausen, William; Dommasnes, Are; Friedland, Kevin; Aydin, Kerim (ICES CM documents;2007/D:11, Working paper, 2007)As part of the international MENU collaboration, energy budget models for five marine ecosystems were compared to identify differences and similarities in trophic and community characteristics across ecosystems. We examined ... -
A cross-ecosystem comparison of temporal variability in recruitment of functionally analogous fish stocks
Megrey, Beatriz Diaz; Hare, Jon; Dommasnes, Are; Gjøsæter, Harald; Stockhausen, William; Overholtz, William; Gaichas, Sarah; Skaret, Georg; Falk-Petersen, Jannike; Link, Jason S.; Friedland, Kevin (ICES CM documents;2007/D:10, Working paper, 2007)As part of the international MENU collaboration, variability in temporal patterns of recruitment and spawning stock were compared among functionally analogous species from four marine ecosystems including the Gulf of ... -
A research proposal to evaluate the ecological importance of minke whales (Balaenoptera acutorostrata) in the northeast Atlantic
Haug, Tore; Gjøsæter, Harald; Nordøy, Erling S.; Schweder, Tore (ICES CM Documents;1992/N:8, Working paper, 1992) -
An integrated database for marine research
Floen, Svein; Gjøsæter, Harald; Korneliussen, Rolf J.; Sagen, Helge; Thorvaldsen, Petter A.; Wennevik, Vidar (ICES CM Documents;1993/D:23, Working paper, 1993)In 1992 an integrated model for marine research data was developed at the Institute of Marine Research. Traditionally, the marine research disciplines collect data from their own fields, normally used in a limited context. ... -
Diet of polar cod, Boreogadus saida, in the Barents Sea related to fish size and geographical distribution
Ajiad, Adnan Mosa; Gjøsæter, Harald (ICES CM Documents;1990/G:48, Working paper, 1990)Polar cod stomachs collected during autumn of 1986-1988 in the Barents Sea were analysed. The results indicated that polar cod is an opportunistic feeder, and that the observed changes in feeding pattern from one region ... -
Distribution and growth of capelin in the Barents Sea in relation to water temperature in the period 1974 to 1983
Gjøsæter, Harald; Loeng, Harald (ICES CM Documents;1984/GEN:16, Working paper, 1984)The variation in the distribution of the different age-groups of capelin in the Barents Sea were studied in relation to temperature variation in the period 1974 to 1983. In addition, growth of the capelin were compared ... -
Drift of capelin larvae - a population sink?
Bjørke, Herman; Gjøsæter, Harald; Loeng, Harald (ICES CM Documents;1988/H:54, Working paper, 1988) -
Evaluation of the proposed harvest control rule for Northeast Arctic saithe: background, population model, parameters, data and preliminary analyses
Mehl, Sigbjørn; Fotland, Åge; Bogstad, Bjarte; Korsbrekke, Knut; Gjøsæter, Harald (Working paper, 2007) -
Growth of 0-group fish in relation to temperature conditions in the Barents Sea during the period 1965- 1989
Loeng, Harald; Gjøsæter, Harald (ICES CM Documents;1990/G:49, Working paper, 1990)Since 1965 the International 0-group fish survey has been carried out in the Barents Sea during late August and early September. The main purpose is to determine the year-class strength of some commercial fish species ... -
Growth of capelin in relation to zooplankton biomass in the Barents Sea
Gjøsæter, Harald; Skjoldal, Hein Rune; Hassel, Arne (ICES CM Documents;1995/P:5, Working paper, 1995)Growth of capelin in the Barents Sea stock has been found to vary considerably both between years and between different parts of the distribution area. The aim of this paper is to compare such growth variations with ... -
Growth of Polar cod (Boreogadus saida) in the Barents Sea
Gjøsæter, Harald; Ajiad, Adnan Mosa (ICES CM Documents;1990/G:47, Working paper, 1990)Observed length-at-age, and backcalculated lengths based on otolith measurements, from samples of polar cod collected in the Barents Sea in autumn of 1987 to 1989, were analysed. An increase in individual length growth ... -
Growth of the Barents Sea capelin (Mallotus villosus) in relation to climate
Gjøsæter, Harald; Loeng, Harald (ICES CM Documents;1986/H:64, Working paper, 1986)The history of capelin assessment in the Barents Sea has shown that the growth of individual capelin has varied between years and different parts of the capelin distribution area. As the number of individuals in this ... -
Growth of the Barents Sea capelin compared to stock size and geographical distribution
Gjøsæter, Harald (ICES CM Documents;1986/H:38, Working paper, 1986)The growth of individual capelin in the Barents Sea stock was analysed in relation to the geographical distribution and size of the stock in the feeding season, and the density of fish in the feeding area. The growth ... -
Growth patterns in otoliths as an indication of daily growth variations of larval herring (Clupea harengus) from an experimental ecosystem
Gjøsæter, Harald; Øiestad, Victor (ICES CM Documents;1981/H:31, Working paper, 1981)Larval herring were released in a large outdoor basin four days after hatching and the mean growth in length and weight of the herring larvae and fry was monitored for 100 days. The food supply was estimated from weekly ... -
Impact of grazin from capelin (Mallotus villosus) on zooplankton: a case study in the northern Barents Sea in August 1985
Hassel, Arne; Skjoldal, Hein Rune; Gjøsæter, Harald; Loeng, Harald; Omli, Lena (ICES CM Documents;1991/L:62, Working paper, 1991)The distribution of capelin was mapped in the area east of Hopen. Zooplankton was sampled with Juday net and 1m^2 MOCNESS sampler, and analyzed with respect to hydrography and capelin abundance. The capelin "front" ... -
IMR status report on the Barents Sea Ecosystem, 2004-2005
Stiansen, Jan Erik; Bogstad, Bjarte; Dalpadado, Padmini; Gjøsæter, Harald; Hauge, Kjellrun Hiis; Ingvaldsen, Randi; Loeng, Harald; Mauritzen, Mette; Mehl, Sigbjørn; Ottersen, Geir; Stenevik, Erling Kåre (Working paper, 2005) -
The language of fishery management advice offered by ICES
Sandberg, Per; Røttingen, Ingolf; Gjøsæter, Harald (ICES CM documents, Working paper, 2003)Since the establishment of the Exclusive Economic Zones in the mid 1970s, several exploited fish stocks in the Northeast Atlantic have been managed by total allowable catch (TAC). The advice on annual levels of TAC, as ... -
Multispecies considerations
Bogstad, Bjarte; Gjøsæter, Harald; Mehl, Sigbjørn (Working paper, 1997) -
Primary growth increments in otoliths of cod larvae (Gadus morhua L.) of the Arcto-Norwegian cod stock
Gjøsæter, Harald; Tilseth, Snorre (ICES CM Documents;1981/G:54, Working paper, 1981)Primary growth increments are laid down in the otoliths of cod larvae living in a habitat where the light intensity is above the light threshold for visual feeding during 24 hours, and in which the larvae were observed to ...