Blar i ICES CM documents authored by IMR scientists (1949-2011) på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920"
Viser treff 61-80 av 147
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North-East Arctic Cod and Haddock Sub-group
(ICES CM documents, Working paper, 2000) -
Norwegian combined acoustic and bottom trawl surveys for demersal fish in the Barents Sea during winter
(ICES CM documents, Working paper, 1997)A combined acoustic and bottom trawl survey for demersal fish in the Barents Sea has been conducted annually since 1981. The main aim is to map the spatial distribution and obtain indices of abundance (numbers at age) ... -
The Norwegian fisheries for Norway pout
(ICES CM Documents;1964/120, Working paper, 1964) -
Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1982
(ICES CM documents, Working paper, 1982)An acoustic survey and a bottom trawl survey were carried out in the Barents Sea during winter 1982. Both surveys showed that there has been a reduction in the total number of cod of about 50% and about 75% for haddock in ... -
Norwegian spring spawning herring (Clupea harengus L.): protection of spawning areas in relation to changes in migration pattern
(ICES CM documents, Working paper, 1998) -
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 ... -
On acoustic identification, sizing and abundance estimation of fish
(ICES CM documents, Working paper, 1970) -
On the problem of determining the relationship between integrated echo intensity and fish density
(ICES CM documents, Working paper, 1975) -
On the relation between ‘true’ numbers of Northeast Arctic cod and VPA- or survey-based abundance estimates
(ICES CM documents, Working paper, 2001)When assessing Northeast Arctic cod it is assumed that the estimates of numbers at age generated by a converged VPA type analysis are equal, on average, to the true numbers at age. Based on fishery independent survey ... -
An overview of Gadget, the Globally applicable Area-Disaggregated General Ecosystem Toolbox
(ICES CM documents, Working paper, 2004)Gadget is the Globally applicable Area-Disaggregated General Ecosystem Toolbox. Gadget is a powerful and flexible framework that has been developed to model complicated statistical marine ecosystems within a fisheries ... -
Pollution of the North Sea - Report of a meeting of analysts and biologists held at Charlottenlund 17-18 August 1971
(ICES CM Documents;1971/E:35, Working paper, 1971) -
Potential sources of unaccounted mortality in the fishery for Norwegian spring spawning herring
(ICES CM documents, Working paper, 2002)The stock of Norwegian spring spawning herring (NSSH) is managed and fished by 5 different parties. These are the EU, Faroe Islands, Iceland, Norway and Russia. The most common gears are purse seine and pelagic trawl. The ... -
Preliminary report of the international 0-group fish survey in the Barents Sea and adjacent waters in August-September 1992
(ICES CM documents, Working paper, 1992) -
Preliminary report of the international 0-group fish survey in the Barents Sea and adjacent waters in August-September 1993
(ICES CM documents, Working paper, 1994) -
Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea
(ICES CM documents, Working paper, 1986)An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1986. As a result of strong improvement in the recruitment for both species, most of the echo abundance ... -
Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1982
(ICES CM documents, Working paper, 1983)An acoustic survey and a bottow trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1983. The two surveys gave different results. The acoustic survey showed a 50 % reduction from 1982 for ... -
Preliminary report of the Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1985
(ICES CM documents, Working paper, 1985)An acoustic survey and a bottom trawl survey for cod and haddock were carried out in the Barents Sea during the winter 1985. The acoustic data and the biological data from trawl stations were combined in two different ways, ... -
Prey consumtion by Barents sea harp seals in the period 1990-2005
(ICES CM documents, Working paper, 2006)The Barents Sea ecosystem has experienced major fluctuations in species abundance in the past 20-30 years. The mechanisms behind these fluctuations are complex and arise from numerous interactions between species and the ... -
Progress Report on Joint Investigation on Arctic Cod
(ICES CM Documents;1958/75, Working paper, 1958) -
Recruitment variability in Norwegian spring-spawning herring (Clupea harengus L.): the effect of temperature in larval drift trajectories
(ICES CM documents, Working paper, 2000)During late winter, the Norwegian spring-pawning (NSS) herring migrate southward along the Norwegian coast to spawn in March-April. The larvae drift northwards in the Norwegian coastal current during their first months and ...