Browsing Brage IMR by Subject "VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488"
Now showing items 61-80 of 318
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Ecosystem dynamics and optimal long-term harvest in the Barents Sea fisheries : proceedings of the 11th Russian-Norwegian symposium Murmansk, 15-17 August 2005
(IMR/PINRO Joint Report Series;2/2005, Research report, 2005) -
An ecosystem modeling approach to predicting cod recruitment
(ICES CM documents, Working paper, 2006)Abstract The NORWECOM ocean model system implemented with the ROMS ocean circulation model has been run to simulate conditions over the last 25 years for the North Atlantic. Modelled time series of volume fluxes, primary ... -
Effect from the king- and snow crab on Barents Sea benthos. Results and conclusions from the Norwegian-Russian Workshop in Tromsø 2010
(Fisken og havet;8-2013, Research report, 2013)The king crab move further out in the sea in Russian waters compared to the Norwegian waters. This might have important implications on the distribution of feeding pressure and impact of crabs on benthic communities ... -
The effect of ambient temperature on the spawning migration of capelin
(PINRO-IMR Symposium, Conference object, 1987)The model presently in use for management of the Barents Sea capelin stock may be considerably improved by utilization of biological information from the spawning stock. The distributions of length and age for capelin ... -
The effect of biological and physical factors on the survival of Arcto-Norwegian cod and the influence on recruitment variability
(PINRO-IMR Symposium, Conference object, 1987)Data from egg and larval field investigations h the Lofoten area are used together with long time series of data on temperature and zooplankton in Lofoten and abundance indices of Arcto-Norwegian cod. The importance ... -
Effects of climate and stocks interactions on the yield of north-east arctic cod. Results from multispecies model run
(ICES CM documents, Working paper, 2000)A conceptual climate dependent multispecies model for stock interactions and harvesting of herring, capelin and cod in the Norwegian Sea-Barents Sea region has been developed. The concept presupposes that good recruitment ... -
Effects of mortality changes on biomass and production in Calanus spp. populations
(Journal article; Peer reviewed, 2011-04-28)Calanus species are the main link between primary producers and higher trophic-level organisms in the Barents Sea. The natural mortality rate is an essential parameter for determining the standing stock of Calanus, but it ... -
Effects on Norwegian fisheries of sea floor littering and the physical presence of the petroleum industry
(ICES CM Documents;1977/E:59, Working paper, 1977) -
Effekter på økosystemer og biologisk mangfold : Klimaendringer i norsk Arktis : NorACIA delutredning 3
(Research report, 2010-02) -
The Ekofisk brave blow out : Compiled Norwegian Contributions
(ICES CM Documents;1977/E:55, Working paper, 1977) -
EPIGRAPH kartlegg påverknad på økosystemet i Hardangerfjorden
(Havforskningsnytt, Working paper, 2008)Forskingsprogrammet EPIGRAPH skal dokumentera og kartleggja menneskeleg påverknad på økosystemet i Hardangerfjorden. Dei første resultata frå prosjektet viser få endringar hos tang- og tarebestandane sidan 1950-talet, men ... -
Estimation of harp seal pup production in the Greenland Sea using spatial analysis on aerial survey data
(ICES CM documents, Working paper, 2005)From 14 March to 6 April 2002 aerial surveys were carried out in the Greenland Sea packice to assess the pup production of the Greenland Sea population of harp seals Pagophilus groenlandicus. One xed-wing twin-engined ... -
Et massivt inngrep [Jan Helge Fosså uttaler seg om konsekvensutredningen for fjorddeponiet]
(Others, 2009-03-04) -
Exploitation as a driving force of life history evolution: methods and empirical analyses
(ICES CM documents, Working paper, 2004)Today, fishing is the dominant source of mortality in most commercially exploited fish stocks. Life-history theory predicts that, under most circumstances, increased mortality at potential ages and sizes at maturation ... -
Extended survey report from the joint Norwegian/Russian ecosystem survey in the Barents Sea August-October 2004, Volume 2
(IMR/PINRO joint report series, Research report, 2005)The main aim of the ecosystem survey was to map the distribution and abundance of the young and adult stages of several demersal and pelagic fish species, and in addition to this gather information about hydrographical ... -
Extended survey report from the joint Norwegian/Russian ecosystem survey in the Barents Sea August-October 2004, Volume 2
(IMR/PINRO joint report series, Research report, 2005)The main aim of the ecosystem survey was to map the distribution and abundance of the young and adult stages of several demersal and pelagic fish species, and in addition to this gather information about hydrographical ... -
Extended survey report from the joint Norwegian/Russian ecosystem survey in the Barents Sea August-October 2004, Volume 2
(IMR/PINRO joint report series, Research report, 2005)The main aim of the ecosystem survey was to map the distribution and abundance of the young and adult stages of several demersal and pelagic fish species, and in addition to this gather information about hydrographical ... -
Feeding ecology of Atlantic mackerel (Scomber scombrus) in the Norwegian Sea
(ICES CM documents, Working paper, 2006)Previous studies on Atlantic mackerel (Scomber scombrus) feeding during the highly migratory summer period are scarce. In this study we present detailed diet analyses and investigations of prey selection for Atlantic ... -
Fisheries-Induced Changes in Age and Size at Maturation and Understanding the Potential for Selection-Induced Stock Collapse
(ICES CM documents, Working paper, 2002)Fishing is very likely to create selective pressures inducing adaptive changes in the life histories of harvested stocks. Using field data and adequate statistical methods, such alterations can be demonstrated. However, ...