Blar i ICES CM documents authored by IMR scientists (1949-2011) på emneord "biomass"
Viser treff 1-20 av 22
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Acoustic visualization of large scale macroplankton and micronekton distributions across the Norwegian shelf and slope of the Norwegian Sea.
(ICES CM Documents;1993/L:44, Working paper, 1993)We present results from acoustical (38 kHz split beam) surveys, biological sampling (trawling, zooplankton nets), and measurements of physical parameters (salinity, temperature, currents) across and along the shelf ... -
Catch statistics and life history of shrimp, Pandalus borealis, in the Jan Mayen area
(ICES CM Documents;1996/K:11, Working paper, 1996)The Norwegian shrimp (Pandalus borealis) fisheries in the Jan Mayen area in the North East Atlantic started in 1974. The catches reached 2000 tons in 1985. Since 1986 the catches decreased, but lately they have increased ... -
Condition and size composition effects on the simulated relationship between spawner biomass and total egg production for Northeast Arctic cod (Gadus morhua L.)
(ICES CM Documents;1999/Y:6, Working paper, 1999)Spawner biomass (SB) is often assumed to be proportional to total egg production (TEP) by fish stocks. Recent studies suggest that this assumption may not be valid, particularly when the physiological condition of fish ... -
Density in sub-arctic zooplankton
(ICES CM documents, Working paper, 1985)Seasonal variations in specific density were measured for Thysanoessa inermis, Thysanoessa raschii, Meganyctiphanes norvegica, Calanus finmarchicus and Calanus hyperboreus. The density of a 20 mm T. inermis was lowest in ... -
Differences between near bottom biomass spatial structure observed in the Irish Sea, the North Sea and the Barents Sea in recent years
(ICES CM documents, Working paper, 2003)Based on acoustic data and trawl catches collected during bottom trawl surveys, we compare the spatial structure of the biomass available in the first meters above the bottom in three different regions, the Barents Sea ... -
Fish communities on the slop of the eastern Norwegian Sea
(ICES CM Documents;1998/O:30, Working paper, 1998)Bortom trawl data from the depth interval 300-2050 m on the slope off Norway were analysed to study distribution of fish biomass and the associated species assemblages. It is hypothesised that the pronounced hydrographic ... -
Growth of capelin in relation to zooplankton biomass in the Barents Sea
(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 ... -
Norwegian investigations on the deep sea shrimp (Pandalus borealis) in the Barents Sea in April - May 1984 and in the Spitsbergen area in July -August 1984
(ICES CM Documents;1984/K:21, Working paper, 1984)This report discribes the results from a stratified bottom trawl survey with R/V "Michael Sars" in April - May 1984 in the Barents Sea between 71°30'N - 76°00'N and between 16°30'e 35°30 'E. The report also decribes the ... -
Preliminary report from the sea-going workshop in Norway June 1993 on intercomparison and evaluation of methods for sampling and determination of zooplankton distribution and biomass
(ICES CM Documents;1993/L:45, Working paper, 1993)A sea-going workshop was arranged from 2 to 13 June 1993 in Storfjorden at Møre on the west coast of Norway. The workshop was a two-ship operation involving the Norwegian R/V "Johan Hjort" and the German R/V "A.V. Humboldt". ... -
Report from the 2nd Meeting of the ICES Study Group on Zooplankton Production [Las Palmas, 8- 11 March, 1993]
(ICES CM Documents;1993/L:11, Working paper, 1993) -
Report of the Blue Whiting Assessment Working Group [Vigo, Spain, 8- 14 September, 1994]
(ICES CM Documents;1995/Assess:7, Working paper, 1995) -
Report of the ICES Study Group on Zooplankton Production [Bergen, 23- 26 March, 1992]
(ICES CM Documents;1992/L:5, Working paper, 1992) -
Report of the Working Group on Fisheries Acoustic Science and Technology [Hamburg, 18- 19 April, 1997]
(ICES CM Documents;1997/B:5, Working paper, 1997) -
Report of the Working Group on Phytoplankton Ecology (WGPE) [19- 21 February, 2004, Gijón, Spain]
(ICES CM Documents;2004/C:1, Working paper, 2004) -
Report of the Working Group on Phytoplankton Ecology [Büsum, Germany, 24- 26 March, 1997]
(ICES CM Documents;1997/L:5, Working paper, 1997) -
Report of the Working Group on Phytoplankton Ecology [Lisbon, 19- 24 March, 1998]
(ICES CM Documents;1998/C:3, Working paper, 1998) -
Report of the Working Group on Phytoplankton Ecology [The Hague, 29- 31 March, 1995]
(ICES CM Documents;1995/L:2, Working paper, 1995) -
Report of the Working Group on Zooplankton Ecology (WGZE) [5- 8 April, 2004, Hamburg, Germany]
(ICES CM Documents;2004/C:7, Working paper, 2004) -
Results of Norwegian and Russian investigations of shrimp (Pandalus borealis) in the Barents Sea and Svalbard area in 1991
(ICES CM Documents;1992/K:39, Working paper, 1992)The results of the Russian and Norwegian surveys for shrimp, Pandalus borealis, in the Barents sea in spring and the Svalbard area in autumn 1991 are presented in this paper. The survey results are presented by nation ... -
Results of Norwegian and Russian investigations of shrimp (Pandalus borealis) in the Barents Sea and Svalbard area in 1992
(ICES CM Documents;1993/K:9, Working paper, 1993)The results of the Russian and Norwegian surveys for shrimp, Pandalus borealis, in the Barents Sea in spring and the Svalbard area in autumn 1992 are presented in this paper. The survey results are presented by nation ...