Blar i ICES CM documents authored by IMR scientists (1949-2011) på tittel
Viser treff 61-80 av 3138
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A three level pelagic trawl for near surface sampling of juvenile fish
(ICES CM Documents;1993/B:19, Working paper, 1993)In the northeast Atlantic Ocean catch rates of juvenile fish from pelagic trawls are used to calculate indices of relative abundance which are applied as a first indication of year class strength. A major constraint for ... -
A vessel specific bias in echo sounder recordings during trawling
(ICES CM Documents;2004/R:35, Working paper, 2004) -
Absorption of acoustic energy in dense herring schools studied by the attenuation in the bottom echo signal
(ICES CM Documents;1990/B:2, Working paper, 1990)The absorption of acoustic energy in herring schools is studied by echo integration of the bottom signal under various densities of herring. The investigations were carried out in a fjord in northern Norway, where large ... -
Abundance and distribution of postlarvae in the 0-group saithe survey in the north-east Arctic in 1985
(ICES CM Documents;1986/G:87, Working paper, 1986)From 11 May to 31 May 1985 a pelagic trawl survey was carried out outside the Norwegian coast north of 62° N. The purpose of this pilot survey was to examine the possibility of getting useful information about the year ... -
Abundance and mortality of Northeast Arctic cod and haddock during their first years of life
(ICES CM Documents;2010/C:04, Working paper, 2010)For Northeast Arctic cod and haddock in the Barents Sea, long time series of year-class abundance are available at several stages before they recruit to the fishery, i. e. before they reach age 3. Several studies have ... -
Abundance and productivity of the pelagic ecosystem along a transect across the northern Mid Atlantic Ridge in June 2003
(ICES CM documents;2008/C:12, Working paper, 2008)A research cruise was conducted into the Irminger Sea west and southwest of Iceland on the Icelandic vessel Árni Friðriksson, from 4-30 June 2003, investigating redfish, Sebastes mentella, other pelagic fishes, zooplankton, ... -
Abundance estimates of Barents Sea capelin
(ICES CM Documents;1964/119, Working paper, 1964) -
Abundance estimation of herring hibernating in a fjord
(ICES CM Documents;1993/D:45, Working paper, 1993)A series of acoustic surveys of the adult component of the Norwegian spring-spawning herring was conducted in Ofotfjorden and Tysfjorden in December 1992. Preliminary results are reported. These include compensation for ... -
Abundance estimation of Norwegian spring spawning herring wintering in the Vestfjord system, December 1996
(ICES CM Documents;1997/FF:13, Working paper, 1997)The spawning stock of Norwegian spawning herring has been surveyed when wintering in the Vestfjord, Tysfjord, and Ofotfjord, in northem Norway in December 1996. The basic method is that of echo integration, with compensation ... -
Abundance estimation of pelagic fish stocks by acoustic surveying
(ICES CM Documents;1991/B:33, Working paper, 1991)The echo integration technique is outlined. Weaknesses are identified and remedies described. While the technique is adequate for surveying some stocks, improvements are necessary for its proper application to others. ... -
Abundance estimation of schools using a fisheries sonar
(ICES CM Documents;1991/B:35, Working paper, 1991)An attempt of abundance estimation of fish schooling close to surface using sonar was conducted in Eastern North Sea - Skagerrak in September 1990. The method is based on measurements of the school area by the Furuno ... -
Abundance estimation of the spawning Lofoten cod 1971
(ICES CM documents, Working paper, 1971) -
Abundance estimation with echo integrator of arctic cod on the spawning grounds in Lofoten 1972
(ICES CM Documents;1972/F:37, Working paper, 1972) -
Abundance indices for the Arcto-Norwegian cod for the period 1979 -1986 based on investigations in June/July
(ICES CM Documents;1986/G:75, Working paper, 1986)Postlarvae Surveys have been carried out in the western part of the Barents Sea in June/July since 1977. The aim of the investigations has been to study the distribution pattern of fish larvae and their relation to the ... -
The abundance of sprat eggs and larvae in the Langesund and the Oslofjord areas, south-eastern Norway, 1974-1978.
(ICES CM Documents;1979/H:60, Working paper, 1979)Sprat eggs and larvae were sampled through monthly cruises in two fjordsystems of South Eastern Norway from 1974 to 1978. The abundance and distribution of the eggs and larvae were studied. Eggs were found throughout ... -
An account of the Norwegian coalfish investigations with special reference to the tagging experiments
(ICES CM Documents;1961/125, Working paper, 1961)Total Norwegian landings of coalfish during the last decade averaged 66 000 tons annually. The main types of gear are purse seine, gill nets and otter trawl. Statistics of quantities by month and area are available, but ... -
Accumulation and disposal of some byproducts from vinylchloride production in cod liver
(ICES CM Documents;1971/E:10, Working paper, 1971) -
Accumulation and metabolism of phenanthrene by saithe (Pollachius virens)
(ICES CM Documents;1978/E:42, Working paper, 1978)Phenanthrene labeled with carbon-14 was administered to saithe. Pollachius virens, in dry food and the radioactivity in the different tissues were measured at intervals using a Packard Tri-Carb scintillation-counter. ... -
Accumulation and metabolism of phenanthrene in Norway lobster (Nephrops norvegicus)
(ICES CM Documents;1979/E:53, Working paper, 1979)[9-14 c] Phenanthrene was administered to Norway lobster, Nephrops norvegicus, intragastricly and the radioactivity in different tissues were measured at intervals using a scintillation counter. The radioactivity was ... -
Accumulation and metabolism of phenanthrene in rainbow trout (Salmo gaidneri)
(ICES CM Documents;1979/E:51, Working paper, 1979)Phenanthrene labelled with carbon-14 was administered to rainbow trout, Salmo gaidneri, in dry food and the radioactivity in the different tissues were measured at intervals using a Packard Tri-Carb scintillation-counter. ...