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Distribution and number of marine mammals in the open Barents Sea and their connection with capelin and polar cod distribution [presentation]
(IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Distribution and sedimentation of radionuclides in the Barents Sea
(ICES CM Documents;1995/Mini:11, Working paper, 1995)Analysis of sediment samples for cesium-137 from a wide range of positions have demonstrated an uneven distribution. The causes, pathways and the possible origin of the radionuclide are discussed. The importance of ... -
Distribution of bioluminescence and plankton in a deep Norwegian fjord measured using an ISIT camera and the Digital Underwater Video Profiler
(ICES CM documents;2007/F:02, Working paper, 2007)Bioluminescence and plankton profiles were obtained using a downward-looking ISIT low-light camera and the Underwater Video Profiler system in Sognefjord, Norway. The profiling systems were lowered by CTD wire and recorded ... -
The distribution of cod larvae and prey organism in the Lofoten area related to critical prey concentration
(PINRO-IMR Symposium, Conference object, 1984)The distribution of cod larvae and their main prey organisms in the first feeding areas off the Lofoten islands have been studied in sheltered and exposed areas in relation to feeding conditions. These findings are discussed ... -
The distribution of cod-haddock in the Central and South-Eastern Barents Sea, September - October 1958
(ICES CM Documents;1959/44, Working paper, 1959) -
Distribution of deep sea shrimp (Pandalus borealis Krøyer) in relation to temperature in the Barents Sea
(PINRO-IMR Symposium, Conference object, 1987)In the years 1980 to 1985 stratided raildom bottom trawl surveys were carried out on the shrimp fields in the Svalbard and Barents Sea regions. The objeetives of the cruises were to study the structure of the shrimp stock ... -
Distribution of escaped farmed salmon and rainbow trout in the sea and possible effects of salmon lice on wild stocks
(ICES CM Documents;2002/T:8, Working paper, 2002)The aims and first results of a recently started project are presented. The geographical and seasonal distribution of the catch and catch per unit effort of escaped farmed salmon and rainbow trout are studied in an area ... -
Distribution of herring (Clupea harengus) and zooplankton in the Norwegian Sea, as determined from generalised additive models
(ICES CM documents, Working paper, 2005)We analyse the variability in the distribution and feeding of the Norwegian spring-spawning herring in the period from 1995 to 2004, using survey data collected throughout the Norwegian Sea each year in May - June. The ... -
Distribution of multiple forms of lactate dehydrogenase, aspartate aminotransferase and serum esterase in herring samples from Norwegian waters
(ICES CM Documents;1969/16, Working paper, 1969) -
Distribution of Norwegian spring-spawning herring and mackerel in the Norwegian Sea in late summer, 1991
(ICES CM Documents;1992/H:13, Working paper, 1992)A pairtrawl survey was carried out in the Norwegian Sea during July - August 1991 to map the distribution of pelagic fish. Herring were caught throughout most of the surveyed area, with the largest concentrations observed ... -
The distribution of redfish larvae in Norwegian coastal and offshore waters during the years 1948-58
(ICES CM Documents;1959/9, Working paper, 1959) -
Distribution, abundance and trends in abundance of fin and humpback whales in the North Atlantic
(ICES CM documents, Working paper, 2005)The North Atlantic Sightings Surveys (NASS) are a series of international cetacean line transect surveys, including participation from the Faroe Islands, Iceland, Norway and Spain, that have been conducted in 1987, 1989, ... -
Distribution, drift and condition of herring larvae off western Norway in 1985
(ICES CM Documents;1986/H:39, Working paper, 1986)The recruitment to the Norwegian spring-spawning herring have during the last twenty years been on a very low level. However, the size of the spawning stock has increased in recent years and in 1983 a rich year class ... -
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 ... -
Diurnal changes in bottom trawl catches and vertical fish distribution
(ICES CM Documents;1988/B:32, Working paper, 1988)Bottom sampling trawl catches and acoustic abundance estimates of North-East Arctic cod and haddock in the Barents Sea were collected and examined according to time of day. The trawl catches were at average larger by day ... -
Diurnal variation in acoustic densities: why do we se less in the dark?
(ICES CM Documents;2004/R:33, Working paper, 2004)Introduction: In the Barents Sea, the echo abundance of demersal fish is about 50% higher at day than at night. Three possible reasons are: • Fish hide in the bottom dead zone at night. • Fish target strength changes due ... -
Diurnal variation in bottom trawl survey catches: does it pay to adjust?
(ICES CM Documents;2001/Q:11, Working paper, 2001)We have studied the diurnal bias of bottom trawl survey catches with the purpose of adjusting for it and thereby improving the accuracy of abundance estimates. The correction term is estimated with uncertainty, and thus ... -
Diurnal variation in frequency response of gadoids in the Barents Sea
(ICES CM documents, Working paper, 2006)Earlier studies have demonstrated substantial diurnal variation in acoustic abundance of fish. Both the level and the uncertainty of abundance estimates from surveys carried out around the clock are affected. It has been ... -
Diurnal variation models of bottom trawl survey catches parameterised by using commercial CPUE data
(ICES CM Documents;2004/R:41, Working paper, 2004)Introduction: Diurnal variation is observed in almost all marine surveys and can cause biased abundance and length frequency estimates. Symmetric logistic models developed by Hjellvik et al. (2001) were utilized to ...