Blar i Brage IMR på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921"
Viser treff 41-60 av 2165
-
Accumulation and disposal of some byproducts from vinylchloride production in cod liver
(ICES CM Documents;1971/E:10, Working paper, 1971) -
Acoustic abundance estimation of the Icelandic stock of capelin : 1978-1982
(Working paper, 1982)During the period October 1978 - february 1982 several abundance estimates and yearclass composition of the Icelandic capelin stock were obtained by acoustic methods. Surveying has been carried out in July-Agust, September, ... -
Acoustic abundance estimation of wintering Norwegian spring spawning herring, with emphasis on methodological aspects
(ICES CM Documents;1994/(B+D+G+H):1, Working paper, 1994)The spawning component and part of the juvenile stock of Norwegian spring spawning herring have been wintering in a fjord system in northern Norway in recent years. Conditions for measuring the stock size have been ... -
Acoustic and Bottom Trawl Surveys; How Much Information Do They Provide for Assessing the Northeast Arctic Cod Stock?
(ICES CM documents, Working paper, 1999)Acoustic and bottom trawl surveys of the Northeast Arctic cod stock provide fishery independent estimates of trends in abundance and population characteristics. Given the recent uncertainties in the catch based assessment ... -
Acoustic estimates of spawning cod in the Lofoten area in 1982 and 1983
(PINRO-IMR Symposium, Conference object, 1984)The main spawning grounds for Arctic cod, the Lofoten area, were covered by acoustic surveys 7 times in 1983 and 12 times in 1983 during the prespawning and spawning season. The results indicated a spawning stock in the ... -
Acoustic estimates of spawning cod off Lofoten and Møre in 1985
(ICES CM Documents;1985/G:66, Working paper, 1985)The annual surveys on the spawning stock of North-east Arctic cod were carried out in the Lofoten and Møre areas in March- April 1985. These surveys were undertaken to estimate the size and age structure of the spawning ... -
Acoustic estimates of spawning cod off Lofoten in 1986
(ICES CM Documents;1986/G:79, Working paper, 1986)The annual survey on the spawning stock of North-east Arctic cod were carried out in the Lofoten area in March 1986. This survey was undertaken to estimate the size and age structure of the spawning cod on the main ... -
Acoustic extinction in dense herring layers, measured from a bottom-mounted transducer
(ICES CM documents, Working paper, 2006)Herring is often found in dense aggregations or schools, and acoustic shadowing is thus a problem in acoustic survey estimates. Knowledge of the attenuated echo intensity in herring aggregations is essential for correcting ... -
Acoustic measurements of schooling herring. Estimation of school biomass and target strength
(ICES CM Documents;1988/B:26, Working paper, 1988)The connections between reflected echo energy and dimensions of fatty herring schools were studied by a combination of multibeam sonar and a calibrated echo integration unit. A relation between the area and the biomass ... -
Acoustic properties of Salpa thompsoni.
(ICES CM documents;2009 / I:01, Working paper, 2009)Salps are common members of the world oceans planktonic community (Madin, et.al., 2006). In the southern ocean, both krill (Euphausia superba) and salps (Salpa thompsoni) can occur in dense aggregations (Loeb et al, 2009, ... -
Acute toxicity of some byproducts from vinylchloride production to saithe (Pollachius virens)
(ICES CM Documents;1971/E:11, Working paper, 1971) -
Advice from ICES on mackerel in the Northeast Atlantic for 2015
(Conference object, 2014) -
Age and Growth of Mackerel from Skagerrak and the Northern North Sea
(ICES CM Documents;1969/H:7, Working paper, 1969) -
Age comparisons of capelin otoliths by Norwegian and Russian age readers 2004-2007 : a review
(IMR/PINRO joint report series, Research report, 2008-06) -
Age dependent sensitivity of oil on fish larvae, used in assessment of potential oil pollution damages on fish resources
(ICES CM Documents;1987/E:12, Working paper, 1987)Oil exploration in Norwegian waters will probably be extended further north into the Barents Sea. The Barents Sea is the nursery ground for important fish stocks spawning outside the norwegian coast, north of 62°N. Fish ... -
Age of Atlantic halibut larvae (Hippoglossus hippoglossus L.) at first feeding
(ICES CM Documents;1990/F:53, Working paper, 1990)Halibut larvae at different age (150 to 315 day-degrees) were transferred to outdoor startfeeding tanks each with two internal plastic bags (100 litre). The larvae were fed wild zooplankton. One bag was sampled after 24 ... -
Age, growth, and mortality of the myctophid fish, Benthosema glaciale (Reinhardt), from western Norway
(Journal article; Peer reviewed, 1973-05-18)Age and growth of Benthosema glaciale collected by midwater trawl in western Norway have been studied. Otoliths were used for age determination. The mean annual mortality in age groups I to IV was 52%. Older specimens were ... -
Age, maturity and quality of North Sea herrings : during the years 1910-1913
(Report on Norwegian Fishery and Marine Investigations;vol 3 no 1, Research report, 1917) -
The agreed recovery plan in the management of Norwegian spring-spawning herring
(ICES CM documents, Working paper, 2003)In October 2001 the management agency (Coastal States) for Norwegian spring spawning herring agreed to a recovery plan which will become operative if the spawning stock falls below Bpa. The main element in this recovery ... -
Aktiv forvaltning av marine ressurser – lokalt tilpasset forvaltning. Årsrapport 2015
(Rapport fra Havforskningen;21-2015, Working paper, 2015)