Blar i ICES CM documents authored by IMR scientists (1949-2011) på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920"
Viser treff 1-20 av 147
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Abundance estimation of the spawning Lofoten cod 1971
(ICES CM documents, Working paper, 1971) -
Acoustic estimates of spawning cod off Lofoten and Møre in 1982
(ICES CM documents, Working paper, 1982)Acoustic surveys on spawning cod were carried out in Lofoten and off Møre in order to estimate the stock size and structure. The 1975 yearclass made up the bulk of the spawning stock in both areas. In the Lofoten area the ... -
Acoustic estimates of spawning cod off Lofoten and Møre in 1983
(ICES CM documents, Working paper, 1983)Acoustic surveys on spawning cod were arried out in Lofoten and off Møre in order to estimate the stock size and structure. The 1975 year class made up the bulk of the spawning stock in both areas. In the Lofoten area the ... -
Acoustic estimates of spawning cod off Lofoten and Møre in 1984
(ICES CM documents, Working paper, 1984)Acoustic surveys on northeast Arctic spawning cod were carried out in Lofoten and off Møre in March-April 1984 in order to estimate the stock size and structure. Within the investigated areas the total number at spawning ... -
Acoustic estimates of the Barents Sea capeling stock 1971-1976
(ICES CM documents, Working paper, 1977)The surveys were carried out in June and in August - October. No estimates were obtained for 0-group capelin. 1 year old capeling are grossly underestimated in June. To a lesser extent this is also the case for older ... -
Acoustic method for estimating absolute abundance of young cod and haddock in the Barents Sea
(ICES CM documents, Working paper, 1979) -
Acoustic methods in studies of fish ecology
(ICES CM documents, Working paper, 1998)Systematic use of echo sounder in fisheries and marine science comrnenced in the 1930's and developed rapidly after World War II. During the 1950's and 1960's large scale echo surveys were carried out in many regions as a ... -
Aerial and visual surveys to estimate harp seal pup production in the Greenland Sea
(ICES CM documents, Working paper, 1993)In March-April 1991 a combined expedition using fixed-wing aircraft and ship-borne helicopter was carried out to estimate harp seal pup production in the Greenland Sea (the West Ice). Photographs were taken from the ... -
Ambient temperature and distribution of northeast arctic cod
(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 ... -
Application of acoustic stock abundance estimation on capelin and blue whiting
(ICES CM documents, Working paper, 1972) -
Assessing the precision of the estimated age distribution of the commercial catch of Northeast Arctic cod
(ICES CM documents, Working paper, 2001)The assessment of Northeast Arctic cod is based on estimates of the commercial catch numbers at age. The age structure of the catch is estimated by sampling individuals from commercial fishing trips. Though it is commonly ... -
Await in the pelagic: herring compromising reproduction and survival within a vertically split school
(ICES CM documents, Working paper, 1998) -
Book of Abstracts
(Working paper, 2011) -
The cestode parasite Grillotia Angeli as a biological tag for mackerel in the eastern North Atlantic
(ICES CM documents, Working paper, 1984)The trypanorhynch cestode Grillotia angeli Dollfus, 1969, infects mackerel Scomber scombrus L. up to the age of two years and survives thereafter as an encvsted plerocercus for as long as the mackerel lives. In the eastern ... -
Comparison of Uncertainty Estimates in the Short Term Using Real Data
(ICES CM documents, Working paper, 2000)In response to increased interest in the Precautionary Approach, various approaches have been applied to characterize the uncertainty of fisheries assessment projection results. Using three case studies, a comparison of ... -
Corrections of indices of abundance of 0-group fish in the Barents Sea for varying capture efficiency
(ICES CM documents, Working paper, 1996)Each year since 1965 "The International 0-group Survey in the Barents Sea and Adjacent Waters" has provided indices of abundance of 0-group fish. During the 30 years of operation of the survey large improvements in capture ... -
The correlation between tag-recovery data and VPA-data in Norwegian spring spawning herring
(ICES CM documents, Working paper, 2001) -
Counting of fish with an echo-integrator
(ICES CM documents, Working paper, 1968) -
Current patterns during pelagic stages determine interannual variability in length-at-age of juvenile Arcto-Norwegian cod
(ICES CM documents, Working paper, 2001)