Blar i Published in cooperation with others på emneord "fish migration"
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Acoustic abundance estimation of the stock of Norwegian spring spawning herring, winter 1995- 1996
(ICES CM Documents;1996/H:33, Working paper, 1996)Standard echo integration methodology has been applied to the stock of Norwegian spring spawning herring (Clupea harengus) wintering in the Ofotfjord-Tysfjord-Vestfjord system during late autumn 1995 and early winter ... -
Application of Coded Wire Tagging Technology in Pacific Herring to Investigate Stock Structure and Migration
(ICES CM documents, Working paper, 2001)Tagging of Pacific herring in British Columbia has a long history dating to the mid-1930s but uncertainty in tag recovery locations and low tag return rates limited the utility of these studies. Currently, a larger and ... -
Assessment of the North-East Arctic and North Sea Stocks of Saithe Taking Into Account Migration
(ICES CM Documents;1981/G:36, Working paper, 1981)Tagging experiments have shown that there is a substantial migration of young saithe from the Norwegian coast north of 62°N to the North Sea. Assessments of the North-East Arctic and North Sea Stocks of saithe were made ... -
Behavioural rhythm of cod during migration in the Barents Sea
(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 ... -
Comparison of Northeast Atlantic mackerel (Scomber scombrus) distribution patterns in the Norwegian Sea using lidar, sonar, and trawl
(ICES CM documents, Working paper, 2003)In July 2002 the Institute of Marine Research (IMR), Bergen mapped the distribution and density of mackerel in the Norwegian Sea using lidar, sonar and trawl. A major objective was to test the efficiency of the lidar as ... -
Fish migration in oscillating stratified water masses
(ICES CM documents, Working paper, 2006)Abstract Time series records from data storage tag (DST) attached on Northeast Arctic cod (Gadus morhua L.) and Greenland halibut (Reinhardtius hippoglossoides) are investigated in connection with hydrodynamic and ... -
Getting fat in a hurry: food consumption during the feeding migration of NSS herring
(ICES CM Documents;2004/K:64, Working paper, 2004)The Norwegian spring-spawning (NSS) herring Clupea harengus inhabits a seasonal environment where food is abundant only during a short period of the year. During that period NSS herring store energy for metabolic ... -
Influence of sea temperature on herring distribution and migration in the Norwegian Sea in April 1997
(ICES CM Documents;1999/M:3, Working paper, 1999)After spawning at the west coast of Norway, the Norwegian spring spawning herring migrates northwestwards into the Norwegian Sea to feed in early April. The herring enters areas with distinct oceanographic features both ... -
Norwegian investigations on blue whiting (Micromesistius poutassou, Risso 1810) in the North Sea 1970 - 1973
(ICES CM Documents;1974/H:9, Working paper, 1974) -
Numerical domination and herring migrations
(ICES CM documents, Working paper, 2006)There is accumulating evidence in favour of the hypothesis that herring migrations are influenced by social learning. The “adopted-migrant hypothesis” postulates that recruit spawning herring learn migration patterns by ... -
Observation on distribution and migration of Micromesistius poutassou (Risso, 1810) in the Northeast Atlantic
(ICES CM Documents;1971/H:26, Working paper, 1971) -
Relations between seasonal migrations and fat content in Norwegian spring spawning herring (Clupea harengus L.)
(ICES CM Documents;1996/H:11, Working paper, 1996)The relationship between seasonal migrations and fat content in Norwegian spring spawning herring (whole herring and fillets) was examined using data for the period 1994-1996. During the feeding period (April-August) in ... -
Report of the Joint ICES/NAFO Working Group on Harp and Hooded Seals [ICES Headquarters, 28 August - 3 September, 1997]
(ICES CM Documents;1998/Assess:3, Working paper, 1998) -
Report of the Joint ICES/NAFO Working Group on Harp and Hooded Seals [ICES Headquarters, 28 August - 3 September, 1997]
(ICES CM Documents;1998/Assess:3, Working paper, 1998) -
Report of the North-Western Working Group [ICES Headquarters, 29 April - 8 May, 2002]
(ICES CM Documents;2002/ACFM:20, Working paper, 2002) -
Report of the Planning Group on Surveys on Pelagic Fish in the Norwegian Sea [Tórshavn, Faroe Islands, 27- 29 August, 2003]
(ICES CM Documents;2003/D:10, Working paper, 2003) -
Report of the Working Group on Long-term Management Measures [Copenhagen, 19- 28 January, 1993]
(ICES CM Documents;1993/Assess:7, Working paper, 1993) -
Report on surveys of the distribution, abundance and migrations of the Norwegian spring-spawning herring, other pelagic fish and the environment of the Norwegian Sea and adjacent waters in late winter, spring and summer of 1999
(ICES CM Documents;1999/D:3, Working paper, 1999)Introduction: The Norwegian spring-spawning herring reoccupied the Norwegian Sea as its main feeding area in the early 1990s, after nearly 25 years of absence. The herring stock is now a typical straddling and highly ... -
Size dependency in the migrations and distribution of Norwegian spring spawning herring
(ICES CM documents, Working paper, 2003)The size at first spawning is comparatively larger in Norwegian spring spawning herring (Clupea harengus L.) than in other herring stocks in the Atlantic and Pacific oceans. This is probably an adaptation to a life with ... -
A sonar study of the migration pattern of Norwegian spring-spawning herring (Clupea harengus L.) in July
(ICES CM documents, Working paper, 2000)About 700 schools of Norwegian spring-spawning herring (Clupea harengus L.) were tracked by multi-beam sonar during transect surveys in the Norwegian Sea in July 1995 and 1996. This herring stock usually concentrates in ...