Blar i Brage IMR på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925"
Viser treff 61-80 av 732
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Discarding of fish in North-East Atlantic
(ICES CM Documents;1967/F:35, Working paper, 1967) -
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 = ... -
Distribution and migration of the 1983 year class of Norwegian spring spawning herring in the period July 1987 - August 1988
(ICES CM Documents;1988/H:41, Working paper, 1988)From ao wide distribution on the Norwegian coastal banks between 65°N and 69°N in June-July 1987 the herring of this year class accumulated in an area west of the Lofoten Island in August 1987, and migrated into the ... -
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 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 ... -
Duket for ny loddestrid [Harald Gjøsæter uttaler seg om loddeundersøkelser i Barentshavet]
(Others, 2008-09-01) -
Dødelighet av sild etter trenging i not : Mortality of herring after being crowded in a purse seine
(Havforskningsnytt, Working paper, 2009)When purse seining for herring, catch regulation have traditionally been done by discarding all or part of the catch if it is too big, or if the size or quality of the herring does not match requirements. Net burst is also ... -
Dødelighet av vårgytende sild etter trenging i not Rosfjorden i Vest-agder, 21.03 - 04.04.2011. Tokt 2011805
(Rapport fra Havforskningen;Nr. 10 - 2012, Working paper, 2012-03) -
Effect of attractant distribution on catch rate and size selection of Norway lobster caught by pots
(ICES CM Documents;1991/B:45, Working paper, 1991)In comparative fishing trials with Norway lobster (Nephrops norvegicus) pots, the attractant property of an aqueous extract of mackerel was tested against that of natural mackerel bait. The catch rate of the natural ... -
Effect of size-selective mortality on growth of coastal cod (Gadus morhua L.) illustrated by tagging data and an individual-based growth and mortality model
(ICES CM Documents;1996/G:48, Working paper, 1996)Since 1983 more than one million reared cod juveniles have been tagged and released in different areas along the Norwegian coast. The goal of the programme is to evaluate the ecological and economical potential in sea ... -
Effects of fishing strategy on relative selectivity in trawls, longline and gillnets
(ICES CM Documents;1996/B:23, Working paper, 1996)Exploitation of fish stocks is dependent on effort, catchability, the selectivity of the gear used, and the fishermen's choice of time and place. A full-scale fishing experiment was conducted in February 1996 at the coast ... -
The effects of IUU fishing (unreported catches) on stock assessments, predictions and management advice
(IMR/PINRO joint report series, Conference object, 2005) -
The effects of IUU fishing (unreported catches) on stock assessments, predictions and management advice
(IMR/PINRO joint report series, Conference object, 2005) -
The effects of IUU fishing on stock assessments, predictions and management advice [presentation]
(IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
The effects of IUU fishing on stock assessments, predictions and management advice [presentation]
(IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Effects of setting time, setting direction and soak time on longline catch rates
(ICES CM Documents;1996/B:34, Working paper, 1996)Most studies of factors affecting catching efficiency and selectivity in longlining have focused on various gear parameters (mainline and snood material, hook design and size, rigging) and on the bait (type and size), ... -
Effects of trawling and longlining on the yield and biomass of cod stocks - numerically simulated
(ICES CM Documents;1990/G:32, Working paper, 1990)Numerical studies were conducted on the effects of trawl and longline catches on a cod stock and possible yields from it. Five year mean age composition of Pacific cod (Gadus macrocephalus) from the Bering Sea was used ... -
Ei sild og 108 bill. til [Erling Kåre Stenvig uttaler seg om vårgytende sild og sildelarver]
(Others, 2008-05-05) -
Electronic catch recording onboard commercial fishing vessels for scientific and commercial use
(ICES CM documents;2009/L:16, Working paper, 2009) -
Electronic catch registration onboard commercial fishing vessels for commercial and scientific use
(ICES CM documents;2009/L:16, Working paper, 2009)In assessment and management of marine fish resources, representative data of statistically good quality describing the actual catch are lacking for many fisheries. Even for the most studied fisheries in the north Atlantic, ...