ICES CM documents authored by IMR scientists (1949-2011): Recent submissions
Now showing items 1061-1080 of 3138
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Surface activity of Atlantic salmon (Salmo salar) in net pens
(ICES CM Documents;1988/F:19, Working paper, 1988)An important feature of the behaviour of salmon is the leaping and rolling activity. These surface activities were studied in fish in net pens in relation to environmental factors and operational procedures. Data were ... -
Report of the Study Group on the Norwegian Sea and Faroes Salmon Fishery [Dublin, 9 -11 February, 1988]
(ICES CM Documents;1988/M:2, Working paper, 1988) -
Growth in the Norwegian spring-spawning herring for the year-classes 1950 -1960 and 1973 -1983
(ICES CM Documents;1988/H:35, Working paper, 1988)Two periods with great differences in year-class abundance and recruitment where chosen for growth studies. In the first period the mean year-class strength at 3 years was 6 790 x 10[6] individuals while in the second ... -
The capelin fishery 1972 -1988
(ICES CM Documents;1988/H:55, Working paper, 1988) -
Reproduction of zooplankton in relation to initiation of spring phytoplankton bloom in the Barents Sea
(ICES CM Documents;1987/L:30, Working paper, 1987)The phytoplankton spring bloom development and zooplankton reproduction were investigated in April 1986 in the central and northern Barents Sea. Different stages of phytoplankton bloom development were found, reflecting ... -
Fatty acid composition as indicator of food intake in cod larvae (Gadus morhua L.) from Lofoten, northern Norway
(ICES CM Documents;1987/L:31, Working paper, 1987)The year class strength of the Arcto-Norwegian cod is mainly determined during the early life stages. The mortality is caused both by starvation and predation which are linked to environmental factors during this period. ... -
Reactions of herring to trawling noise
(ICES CM Documents;1988/B:36, Working paper, 1988)The reaction of herring during pelagic trawl sampling has been studied by use of a high-frequency scanning sonar mounted on the headline of the trawl. The difficulties of obtaining high catch rates on shallow herring ... -
The effect of shading in pen rearing of Atlantic salmon (Salmo salar)
(ICES CM Documents;1988/F:18, Working paper, 1988)A full scale pen rearing experiment with covers to reduce illumination was carried out. No significant effects were observed on growth, mortality, ectoparasite infection, maturation or net pen fouling. -
Report of the Working Group on the Assessment of the European Eel [Nantes, France, 22 -24 September, 1987]
(ICES CM Documents;1988/Assess:7, Working paper, 1988) -
Are nutrients and nutrient related parameters suitable in trend monitoring of antropogenic influence?
(ICES CM Documents;1988/E:20, Working paper, 1988)Examples of observations of nutrients from the North Sea, Skagerrak, Kattegat and some Norwegian fjords are presented. The paper discuss the usefullness of such data in trend monitoring and how such data can be used and ... -
Report of the Blue Whiting Assessment Working Group [Copenhagen, 16 -22 September, 1987]
(ICES CM Documents;1988/Assess:6, Working paper, 1988) -
Report of the Working Group on Introductions and Transfers of Marine Organisms [Edinburgh, Scotland, May 31 - June 3, 1988]
(ICES CM Documents;1988/F:20, Working paper, 1988) -
The herring fishery
(ICES CM Documents;1988/H:58, Working paper, 1988) -
Organic waste and antibiotics from aquaculture
(ICES CM Documents;1988/F:14, Working paper, 1988)During the past year three joint projects have been conducted concerning the fate of organic waste and antibiotics from various Norwegian fish farms. The projects are investigating the following topics: - decomposition ... -
Distribution, drift and condition of herring larvae off western Norway in 1987
(ICES CM Documents;1988/H:14, Working paper, 1988)Introduction: After 1959 the Norwegian spring-spawning herring have been spawning along the western coast of Norway north of 62° N. During the sixties the stock was reduced to a minimum. In the recent years there has ... -
Report of the Multispecies Assessment Working Group [Copenhagen, 1 -8 June, 1988]
(ICES CM Documents;1988/Assess:23, Working paper, 1988) -
Drift of capelin larvae - a population sink?
(ICES CM Documents;1988/H:54, Working paper, 1988) -
Herring larvae (Clupea harengus) investigations in the Skagerrak area, December 1987 to March 1988. A preliminary report
(ICES CM Documents;1988/H:20, Working paper, 1988)From December 1987 to March 1988 two transects, Torungen - Hirtshals and Oksøy - Hanstholm, were performed once a month for sampling of herring larvae. The gear used was a 9 feet Isaac-Kid Midwater trawl sampling in the ... -
Report of the Working Group on Oceanic Hydrography [Copenhagen, 4 -5 February, 1988]
(ICES CM Documents;1988/C:18, Working paper, 1988) -
Designing an improved transducer array geometry
(ICES CM Documents;1988/B:2, Working paper, 1988)Improvements in a split-beam transducer that is also used for surveying are sought through changes in array geometry. These are assessed through relative changes in the sum of source level and voltage response and the ...