Browsing ICES CM documents authored by IMR scientists (1949-2011) by Subject "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923"
Now showing items 161-180 of 541
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Preliminary data on feeding and condition of Barents Sea harp seals (Phoca Groenlandica) throughout the year
(ICES CM Documents;1992/N:5, Working paper, 1992)In order to evaluate the ecological role of the most abundant seal species in the Barents Sea, the harp seal Phoca groenlandica, field studies have been carried out in September 1990, in February, March/April, June and ... -
Preliminary report from a comparative study of the diet of four gadoid fishes in a fjord of western Norway
(ICES CM Documents;1986/G:71, Working paper, 1986)As a contribution to a research program on sea ranching of cod in a fjord in western Norway, a dietary analysis of the main gadoid species has been conducted. The main aim of the analysis has been to identify potential ... -
Preliminary report of the Norwegian groundfish survey at Bear island and west-Spitsbergen in the autumn 1982
(ICES CM Documents;1983/G:34, Working paper, 1983) -
Preliminary report of the Norwegian groundfish survey at Bear Island and west-Spitsbergen in the autumn 1984
(ICES CM Documents;1985/G:65, Working paper, 1985)This report describes the results from a stratified bottom trawl survey carried out in September/October 1984. The cod stock component was dominated by the 1982 and the 1983- year classes. The former most abundante ... -
Preliminary results from stocking salmonid freshwater enclosures with flounder (Platichthys flesus)
(ICES CM Documents;1984/F:2, Working paper, 1984)Stocking of flounder in salmonid freshwater culture are suggested as a possible way of reducing loadings of surplus food to surrounding environment Flounder of different sizes were transferred from an estuary to Atlantic ... -
Preliminary results of Norwegian investigations on the greater silver smelt, Argentina silus (Ascanius)
(ICES CM Documents;1982/G:10, Working paper, 1982) -
Prey-specific gastric evacuation of Norwegian spring spawning herring (Clupea harengus)
(ICES CM Documents;2004/P:39, Working paper, 2004)Gastric evacuation rates have earlier mainly been measured based on laboratory experiments. The aim of this study is to obtain information of gastric evacuation rates when the herring are feeding in their natural environment. ... -
Primary growth rings in otoliths of the Barents Sea capelin
(ICES CM Documents;1982/H:9, Working paper, 1982) -
Production experiment of halibut fry in large enclosed water columns
(ICES CM Documents;1986/F:19, Working paper, 1986)Halibut eggs were hatched in 21 floating enclosures and the larvae stored through the yolk sac period under 5 different environmental conditions, each with 4 parallels. The effect of the different environments was ... -
Protease activities in the digestive tract of Atlantic salmon fry from five different river strains
(ICES CM Documents;1982/M:11, Working paper, 1982) -
Pseudobranchial tumors in blue whiting from Norwegian waters.
(ICES CM Documents;1982/E:16, Working paper, 1982)During a cruise off the Norwegian coast from Lofoten to Kristiansund in March 1982 all blue whiting caught were examined for pseudobranchial tumours. 10.7% were found to carry such tumours. The possible relation of the ... -
Recent variations in recruitment of Northeast Atlantic greenland halibut (Reinhardtius hippoglossoides) in relation to physical factors
(ICES CM Documents;1997/EE:6, Working paper, 1997)Based on annual bottom trawl surveys in the Barents Sea and Svalbard area in 1983-96, the paper describes variations in abundance and composition of 1-group Greenland halibut (Reinhardtius hippoglossoides). The main ... -
Recordings of mature Gonatus fabricii (Lichtenstein) off the Norwegian coast
(ICES CM Documents;1996/K:17, Working paper, 1996)Two mature female and three mature males were sampled by trawling with a pelagic trawl at depths of more than 800 m off northem Norway. A third female were sampled with bottom trawl at 970 m off mid Norway. The females ... -
Recruitment indices of Norwegian spring-spawning herring for the period 1965 -1984 based on the international 0-group fish surveys
(ICES CM Documents;1985/H:54, Working paper, 1985)The trawl data from the International 0-group fish surveys in the Barents Sea are analyzed. The fishing powers of the participating vessels are estimated and corrected for. A relative index of year class strength is ... -
Registration of diseases during traditional biological surveys
(ICES CM Documents;1983/Gen:8, Working paper, 1983) -
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 ... -
Release of artificially reared 0-group coastal cod (Gadus morhua L.) in a landlocked fjord in western Norway
(ICES CM Documents;1985/F:10, Working paper, 1985)In 1983 and 1984 about 14 000 seven month old pond or basin reared coastal cod were tagged and released in Heimarkspollen and Osen in Western Norway. In May 1984 fishing in the release areas was initiated and local ... -
Report from a special meeting of the Multispecies Assessment Working Group [Bergen, 23- 27 April, 1990]
(ICES CM Documents;1990/Assess:28, Working paper, 1990) -
Report from the symposium on sea ranching of cod and other marine fish species [Arendal, 15- 18 June, 1993]
(ICES CM Documents;1993/F:49, Working paper, 1993)Recent ranching experiments aimed to enhance the stocks of cod on the Norwegian and Danish coasts have led to disappointing results. The young stages were reared before releasing as juveniles. The use of tags and genetic ... -
Report of an ad hoc working group on the Norway pout box problem : Charlottenlund, 29 January - 2 February 1979.
(ICES CM Documents;1979/G:2, Working paper, 1979)