Blar i ICES CM documents authored by IMR scientists (1949-2011) på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925"
Viser treff 81-100 av 550
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ICES coordinated acoustic survey of ICES divisions IIIa, IVa, IVb and VIa (North) 2003 Results
(ICES CM Documents;2004/R:32, Working paper, 2004)Six surveys were carried out during late June and July covering most of the continental shelf north of 52°N in the North Sea and to the west of Scotland to a northern limit of 62°N. The eastern edge of the survey area was ... -
Immigration and emigration of cod in the spawning areas of Lofoten and Møre
(ICES CM Documents;1984/G:48, Working paper, 1984)Abundance estimates of the spawning stock of north east Arctic cod have in recent years been given on the basis of acoustic surveys. Migration in and out of the surveyed areas during investigation has been considered as a ... -
Improved catch rates and selection of Norway lobster (Nephrops norvegicus L.) by controlled release of fluid bait extract in pot fishing
(ICES CM Documents;1992/B:14, Working paper, 1992)The effect of controlled release of fluid mackerel extract as bait in Norway lobster pots was tested in comparative fishing trials. Compared with natural mackerel bait, pots with extract release rates above 6 ml/h had ... -
Incorporating experimentally derived estimates of survey trawl catchability into the stock assessment process
(ICES CM Documents;1997/W:5, Working paper, 1997)During the course of the April, 1996, meeting of the Fishing Technology and Fish Behavior Working Group it became clear to many that the methodology for experimentally estimating the catchability of survey trawls might ... -
Industrial Fisheries Working Group [ICES headquarters, 23 February -1 March, 1983]
(ICES CM Documents;1983/Assess:7, Working paper, 1983) -
Industrial Fisheries Working Group [ICES headquarters, 7 -13 March, 1984]
(ICES CM Documents;1984/Assess:9, Working paper, 1984) -
Influx of Atlantic water and feeding migration of horse mackerel
(ICES CM documents, Working paper, 1998) -
Intermixture of the North Sea and western mackerel stocks determined by analyses of Norwegian tagging data
(ICES CM Documents;1986/H:65, Working paper, 1986) -
International acoustic survey on blue whiting in the Norwegian Sea during summer 1986
(ICES CM Documents;1986/H:55, Working paper, 1986)The fifth ICES-coordinated acoustic survey on blue whiting in the Norwegian Sea and adjacent waters was conducted from the end of July to the beginning of September 1986. All together eight research vessels from USSR, ... -
International Acoustic Survey on Blue Whiting in the Norwegian Sea, August 1984.
(ICES CM Documents;1984/H:67, Working paper, 1984)Six research vessels from the five nations, USSR, Norway, Faroe Islands, Iceland and GDR participated in the third ICES-coordinated acoustic survey on blue whiting in the Norwegian Sea and adjacent waters. By use of ... -
Investigations on blue whiting in the area west of the British Isles, spring 1995
(ICES CM Documents;1995/H:7, Working paper, 1995)In March/April 1995 the fifth Norwegian-Russian joint acoustic survey on the blue whiting spawning stock was carried out. The shelf edge area to the west of The British Isles was covered by two vessels in a general ... -
Joint Report of the Study Group on Unaccounted Fishing Mortality (SGUFM) and the Workshop on Unaccounted Fishing Mortality (WKUFM)
(ICES CM documents, Working paper, 2005) -
Length and species dependent diurnal variation in catch rates in the Norwegian Barents Sea bottom trawl surveys
(ICES CM documents, Working paper, 1997)Diurnal variation in capture efficiency may add to the variability in swept area estimates (or indices) from bottom trawl surveys. In the present study the relationship between the day/night ratio of swept area estimates ... -
Life history of capelin 1972 -1983
(ICES CM Documents;1988/H:51, Working paper, 1988) -
Limiting inter-annual variation in total allowable catch strategies. An application to ICES roundfish stocks
(ICES CM Documents;2003/X:7, Working paper, 2003)This study evaluated through simulation management strategy that stabilise catch levels by setting bounds on the inter-annual variability in Total Allowable Catches (TACs). An integrated modelling approach was used, which ... -
Lobster (Homarus gammarus) catches in southwestern Norway, including the first recaptures of previously released juveniles
(ICES CM Documents;1993/K:29, Working paper, 1993)Since 1990, 20-30 000 tagged lobster juveniles have been released each year at Kvitsøy, south west Norway, by the Institute of Marine Research. In 1992 the first 19, legally sized lobsters, of these releases were caught. ... -
Long rough dab (Hippoglossoides platessoides) of the Barents Sea and Svalbard area: ecology and resource evaluation
(ICES CM Documents;1994/O:8, Working paper, 1994)Based on data from Norwegian and Russian bottom trawl surveys in the years 1988-1993, the paper considers distribution, population structure, growth and reproduction of long rough dab (Hippoglossoides platessoides) of ... -
Measurements of Iceland scallop (Chlamys islandica müller) in the Spitzbergen and Bear Island regions
(ICES CM Documents;1986/K:26, Working paper, 1986)A stratified bottom trawl fish survey was carried out in the Spitzbergen and Bear Island regions from 9 September to 5 October 1985. On 30 out of 108 trawl stations, Chlamys islandica were caught as a by-catch, and ... -
Measurements of the density coefficient and average target strength of herring using purse seine.
(ICES CM Documents;1982/B:33, Working paper, 1982)Integrator values were obtained from a school of herring. The fish density of this school was determined on the basis of a purse seine catch. From these values a conversion factor and average target strength for herring ... -
Measuring the effect of changes in catchability on the variance of marine survey abundance indices
(ICES CM Documents;1992/D:9, Working paper, 1992)The average catch per tow by a research vessel survey is often used as an index of abundance. An estimate of the variance of such indices that is based only on the between station variability in catch may underestimate ...