Blar i ICES CM documents authored by IMR scientists (1949-2011) på tittel
Viser treff 3060-3079 av 3138
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An ultrasonic current meter
(ICES CM Documents;1971/C:24, Working paper, 1971) -
Ultrasonic tags reveal seasonal movements in red king crab (Paralithodescamtschaticus)
(ICES CM Documents;2010/K:14, Working paper, 2010-09-22)The red king crab was introduced to the Barents Sea in the 1960s and has spread widely both in Norwegian and in Russian waters, entailing a need to acquire knowledge of the biology and behaviour of the crab in these areas. ... -
Underwater optics and behavioral responses of krill to presence of fish predators affect fish-plankton interactions
(ICES CM Documents;1993/L:43, Working paper, 1993)In clear oceanic waters off the Norwegian shelf and in outer shelf waters, mesopelagic fish (Maurolicus muelleri) were located at approximately 200 m by day. Across a front into water of lower light penetration, M. ... -
Update of mark-recapture estimates of harp seal pup production in the Greenland Sea
(Working paper, 1993) -
Updated simulations of development in stock size and pup production for harp seals in the Greenland Sea 1946-1993, and corresponding catch and stock projections.
(Working paper, 1993)Applying the same model as in Ulltang (1989a, b), the development in stock size and pup production of the Greenland Sea hatp seal population is simulated for the period 1946-1993, assuming a pup production of 50000 in 1991 ... -
Upwelling incubators for eggs of the Atlantic halibut (Hippoglossus hippoglossus L.)
(ICES CM Documents;1987/F:20, Working paper, 1987)Incubators with upwelling water for eggs of the Atlantic Halibut are described. Tending and fate of the eggs where monitored, with special emphasis on egg mortality and bacterial activity. Bacterial activity in ... -
Use and selection of prey by harp seals during summer in the northern Barents Sea
(ICES CM documents, Working paper, 2005)The aim of this study was analyse harp seals prey use and selection during summer in Svalbard waters. A total of 41, 34 and 58 (including 24 faeces samples) from animals were sampled in 1996, 1997 and 2004. Krill was the ... -
The use of a digital computer in fisheries research
(ICES CM Documents;1971/B:16, Working paper, 1971) -
Use of acoustics in studies of fish reaction to imposed stimuli
(ICES CM Documents;1985/B:44, Working paper, 1985)The general distribution pattern of fish in a large holding pen is described through the integrated echo intensity in six separate cells using transducers mounted below the pen. The reaction of fish to different stimuli, ... -
Use of data from the commercial fishing industry in the management of Norwegian spring spawning herring (Clupea harengus L.).
(ICES CM documents, Working paper, 2000)Every year the commercial fish industry of Norwegian spring spawning herring collects a severe amount of data for sales purposes that in fact could be very useful for scientific and management purposes too. The present ‘paper ... -
Use of derrick scales for weighing live fish
(ICES CM Documents;1981/F:40, Working paper, 1981)In Norway purse seine catches of saithe are usually sold to the factories alive. The fish is transported in boats specially constructed for the transport, i.e. well-boats. The saithe is weighed when transferred to these ... -
Use of live freshwater zooplankton for startfeeding Atlantic salmon in net pens
(ICES CM Documents;1985/F:16, Working paper, 1985)The experiment was carried out 1984 in a coastal lake near Bergen, Norway. A total of four (later doubled) groups of Atlantic salmon (Salmo salar) fry were startfed with live zooplankton delivered by a pump. Small ... -
The use of Medium-Term Forecasts in advice and management decisions for the stock of Norwegian spring spawning herring (Clupea harengus L.)
(ICES CM documents, Working paper, 2000)Medium-term simulations on the stock development of Norwegian spring-spawning herring (Clupea harengus L.) have been carried out since 1994 by the ICES «Atlanto-Scandian Herring and Capelin Working Group», in 1996 renamed ... -
Use of tag-recovery data to determine migration routes of Norwegian spring-spawning herring
(ICES CM documents, Working paper, 2001) -
Using acoustic surveys to improve the prediction of bottom trawl indices of abundance
(ICES CM documents, Working paper, 1991) -
Using artificial neural networks to combine acoustic and trawl data in the Barents and North Seas
(ICES CM documents, Working paper, 2004)Groundfish have a wide and variable distribution making the use of trawling alone a highly inadequate sampling method. Trawl data provide species identification and numbers over a very small area and habitat type while ... -
Using mark-recapture methods to estimate pup production of harp seals (Phoca groenlandica) in the Greenland Sea
(ICES CM documents, Working paper, 1992)During the period 1968-1991 16,917 harp seal pups have been tagged in the Greenland Sea. From 1976 until 1991, there have been 468 recoveries. 73 of these, mostly drowned in fishing gear or part of Inuit catches at Greenland, ... -
Vaccination against Vibrio salmoncida results from three laboratory trials
(ICES CM Documents;1987/F:24, Working paper, 1987)Atlantic salmon smolts (Salmo salar) were vaccinated with a bacterin made from formalin-killed Vibrio salmonicida. In laboratory trials, fish vaccinated once showed little or no protection after challenge. Fish vaccinated ... -
Vaccination of Arctic char (Salvelinus alpinus) against vibriosis
(ICES CM Documents;1988/F:13, Working paper, 1988)Arctic char of six different strains have been vaccinated against vibriosis and a relative protection (RPP) of 98% was demonstrated by waterborne challenge. This species is highly susceptible to vibriosis and the gross ... -
Validating three methods for making probability statements in fisheries forecasts.
(ICES CM documents, Working paper, 2000)We report on a test of three methods that have been used by ICES in making probability statements about fisheries forecasts to management agencies (XSA/WGMTERM, ICA/ICP, and a stochastic projection method that was first ...