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Diets of hooded seals in coastal and drift ice waters along the east coast of Greenland
(ICES CM documents, Working paper, 2005)To provide data on the feeding habits of hooded (Cystophora cristata) seals in the Greenland Sea, seals were collected for scientific purposes on expeditions with R/V”Jan Mayen”, conducted in the pack ice belt east of ... -
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 ... -
Differences in swimbladder volume between Baltic and Norwegian spring spawning herring: possible consequences for mean target strength
(ICES CM documents;2007/H:03, Working paper, 2007)Volume and shape of the swimbladder of Baltic and Norwegian spring spawning herring were measured, together with individual herring fat content. Swimbladder size was found to differ significantly between the two herring ... -
Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of hemoglobins
(ICES CM Documents;1971/F:26, Working paper, 1971) -
Digital representation of split-beam-transducer beam patterns
(ICES CM Documents;1986/B:2, Working paper, 1986)The farfield beam pattern of each of two different split-beam transducers is computed and represented in the axial region by a finite number of constant levels. The accuracy of representation is determined as a function ... -
Direct measurements of equivalent beam angle on hull-mounted transducers
(ICES CM Documents;1985/B:43, Working paper, 1985)Measurements for checking the equivalent beam angle on a hullmounted transducer have been made on a standard 38-29/25-E SIMRAD transducer on the Norwegian research vessel "ELDJARN". The measurements were made during a ... -
Directional properties of an 18-kHz transducer
(ICES CM Documents;1993/B:29, Working paper, 1993)Several theoretical measures of directivity are given for an 18-kHz transducer that is used in both single-beam and split-beam applications, namely the SIMRAD transducer type 18-11 in the single-beam variant. These are ... -
Directional responses in herring to sound and noise stimuli
(ICES CM Documents;1969/B:20, Working paper, 1969) -
Discarding of fish in North-East Atlantic
(ICES CM Documents;1967/F:35, Working paper, 1967) -
Discrimination of the redfish (Sebastes mentella) stock components in the Irminger Sea and adjacent waters based on meristics, morphometry and biological characteristics
(ICES CM documents;2011/A:28, Working paper, 2011) -
Discrimnation of herring populations in a northern Norwegian fjord: genetic and biological aspects
(ICES CM Documents;1986/H:63, Working paper, 1986)From a trawl survey in a fjord system in northern Norway, it has been possible to separate catches of herring into two distinct groups characterized by different number of vertebrae (VS). Low- vertebral herring (VS = ... -
A discussion on the value of the estimation of polychlorinated biphenyls (PCB`s) in environmental samples from packed column gas-liquid chromatographic data.
(ICES CM Documents;1980/E:35, Working paper, 1980) -
Dispersal and By-Catch Mortality in Grey, Halichoerus grypus, and Harbour, Phoca vitulina, Seals Tagged at the Norwegian coast
(ICES CM documents, Working paper, 2000)The results of the study presented here are submitted to a refereed journal for consideration. The review and printing process may not be completed at the time of the 2000 ICES Annual Science Conference and the subsequent ... -
Distinguishing between spring and autumn spawned herring from daily increments, a preliminary report
(ICES CM Documents;1988/H:15, Working paper, 1988)Otoliths from Norwegian Spring Spawning herring larvae, collected on a cruise in May 1985 and North Sea Autumn Spawned herring larvae, collected on a cruise in Desember 1987, were examined for daily increments. A greater ... -
Distribution and abundance indices of postlarval and 0-group cod
(PINRO-IMR Symposium, Conference object, 1987)Postlarvae surveys have been carried out in the southwestern part of the Barents Sea and the northeastern part of the Norwegian Sea in June/July since 1971, The aim of the Investigations has been to study characteristic ... -
Distribution and abundance of 0-group Norway pout and haddock in the North Sea july - august 1978
(ICES CM documents, Working paper, 1979)In order to assess the 0-group abundance of Norway pout and haddock in the North Sea a combined acoustic/trawl survey was carried out in July - August 1978. The 0-group of both species were concentrated in a scattering ... -
Distribution and abundance of post larval Northeast Arctic cod and haddock
(PINRO-IMR Symposium, Conference object, 1984)From 1977 onwards an annua1 postlarvae survey has been carried out off northern Norway in June/July. The aim is to study the distribution of fish larvae, and to establish an index for thom 53m to surface. In 1983 the ... -
Distribution and abundance of sprat in the North Sea in winter 1979-1980 determined by acoustic methods.
(ICES CM Documents;1980/H:41, Working paper, 1980)To estimate the size of the North Sea sprat stock acoustically two cruises were carried out in November 1979-January 1980. The method is described and the size of the sprat stock was estimated to about 1 million tons. ... -
Distribution and behavioural dynamics of ocean feeding Norwegian spring spawning herring: observations across spatio-temporal scales
(ICES CM documents, Working paper, 1998) -
Distribution and growth of blue whiting in the north-east Atlantic
(ICES CM Documents;1990/H:14, Working paper, 1990)The distribution pattern of the blue whiting spawning stock has gradually changed in recent years, and concentrations are recorded more offshore and more to the south than before. The activity of the fleet with its ...