Blar i Brage IMR på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924"
Viser treff 21-40 av 725
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Acoustic backscatter from zooplankton and fish explored through an optimized model framework
(ICES CM Documents;2004/R:39, Working paper, 2004)The purpose of this work has been to test complementary methods in order to classify marine organisms, with particularly attention to zooplankton and fish. Algorithms to separate fish and zooplankton have been developed ... -
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 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 sampling volume for cod
(ICES CM Documents;1989/B:5, Working paper, 1989)This is expressed through the effective equivalent beam angle * for cod as represented by measurements of the tilt angle dependence of target strength. The functional form of * is approximated for each of several behaviour ... -
Acoustic sampling volume versus equivalent beam angle
(ICES CM Documents;1988/B:5, Working paper, 1988)Irnprovements in target strength measurement have shown the equivalent beam angle (EBA) to be a worrisome source of error in echo integrator surveys. The reason is that the EBA is generally defined as a purely physical ... -
Acoustic stock measurements of the Barents Sea capelin 1972 - 1984: a review
(PINRO-IMR Symposium, Conference object, 1985)This paper gives a review of the procedures currently used to obtain acoustic estimates of the Barents Sea capelin stock, as well as the development history of the procedures, their theoretical and technical basis, and ... -
Adaptive Management of living Marine Resources by integrating different data sources and key ecological parameters (ADMAR)
(Conference object, 2010-09-18) -
Advances in Bergen Echo Integrator
(ICES CM Documents;1993/B:28, Working paper, 1993)The Bergen Echo Integrator (BEl) is a software system designed for convenient postprocessing of echo sounder data. BEl is realized in international standards and is essentially machine independent. Development of BEl for ... -
Agnforbruket i det norske linefisket: en analyse av årsakene til variasjonen i anvendelsen av de ulike agntypene
(Rapport fra Havforskningen;Nr. 24–2013, Working paper, 2013) -
Aktiv forvaltning av marine naturverdier i kystsonen
(Årsrapport;2011, Research report, 2012) -
Aktiv forvaltning av marine verdier i kystsonen
(Research report, 2010-12) -
Aktiv forvaltning av marine verdier i kystsonen
(Årsrapport;2012, Research report, 2012-12-14)The report gives an overview of activities, methods and preliminary results for the two municipalities involved, Tvedestrand and Lindesnes. The Ministry for Fisheries and Coastal affairs proclaimed 20.06.2012 the establishment ... -
Akustikk og fiskeåtferd: korleis kan vi observera åtferd og kva finn vi ut?
(Conference object, 2010-09-15) -
Akustisk overvaking av seien sin vandring i Ryfylkebassenget
(Rapport fra Havforskningen;Nr. 14 - 2012, Working paper, 2012-04) -
Akustisk styring av motor for å åpne/lukke luke i styrbare tråldører og funksjonstester av nytt rullegear på semipelagisk rigget bunntrål om bord i M/S ”Fangst” i august 2014
(Rapport fra Havforskningen;Nr. 26-2014, Working paper, 2014-10) -
Akustiske undersøkelser i Risør- og Kragerøområdet på den norske Skagerrakkysten
(Rapport fra forskningsstasjonen Flødevigen;1993 Nr.2, Working paper, 1993) -
An automatic feeding system for culturing rotifers with dry feed
(ICES CM Documents;1985/F:42, Working paper, 1985)An automatic feed distribution system for culturing rotifers is described and discussed. The system has been successfully used at the Austevoll Marine Aquaculture Station for 3 years. -
An intership sonar calibration experiment in the Norwegian Sea
(ICES CM Documents;1996/B:22, Working paper, 1996)When migrating in the Norwegian Sea in spring and summertime, the Norwegian spring spawning herring will be surveyed by vessels from four nations. Because the herring may occur in schools close to the surface, use of ... -
Application of Coded Wire Tagging Technology in Pacific Herring to Investigate Stock Structure and Migration
(ICES CM documents, Working paper, 2001)Tagging of Pacific herring in British Columbia has a long history dating to the mid-1930s but uncertainty in tag recovery locations and low tag return rates limited the utility of these studies. Currently, a larger and ...