Blar i ICES CM documents authored by IMR scientists (1949-2011) på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920"
Viser treff 21-40 av 147
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Current problems and research related to interactions between marine mammals and fisheries in Norwegian coastal and adjacent waters
(ICES CM documents, Working paper, 1981)Current research and provisional results on the food items and feeding rates of killer whales, minke whales, grey seals, common seals and harp seals are presented. Commercial fish species constitute the major part of the ... -
Demonstration of maternal effects of Atlantic cod: Combining the use of unique mesocosm and novel molecular techniques – A new EU-project
(ICES CM documents, Working paper, 2000)One of the effects of fishing is a reduction in average age and size in exploited fish stocks, leading to an increasing proportion of recruit spawners in the stock. Current management practice assumes equal viability of ... -
Dependence of equivalent beam angle on sound speed
(ICES CM documents, Working paper, 1987)The equivalent beam angle is computed numericaily, according to its rigorous definition, for each of two transducers. These are those used with the SIMRAD split-beam echo sounders at 38 and 70 kHz. The results are expressed ... -
Description of the Norwegian/Russian stomach data set
(Working paper, 1992) -
Detection of spatial distribution of acoustic categories
(ICES CM documents, Working paper, 2005) -
Diets of hooded seals in coastal and drift ice waters along the east coast of Greenland
(ICES CM documents, Working paper, 2005)To provide data on the feeding habits of hooded (Cystophora cristata) seals in the Greenland Sea, seals were collected for scientific purposes on expeditions with R/V”Jan Mayen”, conducted in the pack ice belt east of ... -
Dispersal and By-Catch Mortality in Grey, Halichoerus grypus, and Harbour, Phoca vitulina, Seals Tagged at the Norwegian coast
(ICES CM documents, Working paper, 2000)The results of the study presented here are submitted to a refereed journal for consideration. The review and printing process may not be completed at the time of the 2000 ICES Annual Science Conference and the subsequent ... -
Distribution and abundance of 0-group Norway pout and haddock in the North Sea july - august 1978
(ICES CM documents, Working paper, 1979)In order to assess the 0-group abundance of Norway pout and haddock in the North Sea a combined acoustic/trawl survey was carried out in July - August 1978. The 0-group of both species were concentrated in a scattering ... -
Do Different Methods Provide Accurate Probability Statements in the Short Term?
(ICES CM documents, Working paper, 2000)The performance of uncertainty estimation procedures was evaluated with respect to accuracy. A confidence statement is said to be accurate if the confidence point achieves the desired probability coverage. A Monte Carlo ... -
The earth’s geomagnetic field and geolocation of fish: first results of a new approach
(ICES CM documents, Conference object, 2009) -
An ecosystem modeling approach to predicting cod recruitment
(ICES CM documents, Working paper, 2006)Abstract The NORWECOM ocean model system implemented with the ROMS ocean circulation model has been run to simulate conditions over the last 25 years for the North Atlantic. Modelled time series of volume fluxes, primary ... -
Effects of climate and stocks interactions on the yield of north-east arctic cod. Results from multispecies model run
(ICES CM documents, Working paper, 2000)A conceptual climate dependent multispecies model for stock interactions and harvesting of herring, capelin and cod in the Norwegian Sea-Barents Sea region has been developed. The concept presupposes that good recruitment ... -
Effects on Norwegian fisheries of sea floor littering and the physical presence of the petroleum industry
(ICES CM Documents;1977/E:59, Working paper, 1977) -
Estimates of towing time in surveys
(ICES CM documents, Working paper, 2002)To decide the start and stop time for a survey haul the current method used in Norwegian sampling are the data from the door sensors and height sensors of the trawl. When the trawl has achieved its right geometry, the start ... -
Estimating catch-at-age from market sampling data using a Bayesian hierarchical model
(ICES CM documents, Working paper, 2001) -
Estimation of theoretical operating time in the Antarctic whaling
(ICES CM Documents;1965/175, Working paper, 1965) -
Estimators in acoustic surveying of fish populations
(ICES CM Documents;1976/B:36, Working paper, 1976) -
Evaluation of candidate management plans, with reference to North-East Arctic Cod
(ICES CM documents, Working paper, 2003)We here discuss the scope, nature and quality standards of simulation models that may be used in order to evaluate proposed or candidate management plans, including their parameters (reference points). A recently proposed ... -
Evaluation of harvest control rules: simple one-parameter vs. complex multi-parameter strategies
(ICES CM documents, Working paper, 2003)Harvest control rules (HCR) are sets of well-defined rules that can be used for determin-ing annual fish catch quotas. If a management policy can be expressed as a HCR, then the HCR provides means to determine the total ... -
Experimental dumping of waste ferrosulfate (copperas) into the Skagerrak
(ICES CM Documents;1971/E:32, Working paper, 1971)