Blar i ICES CM documents authored by IMR scientists (1949-2011) på tittel
Viser treff 853-872 av 3138
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Modelled distribution of salmon lice in a Norwegian fjord
(ICES CM documents, Working paper, 2004)Salmon lice is a huge problem for both wild and farmed salmonid fish in fjords. An assessment of salmon lice in a fjord system will bring forward the knowledge of wild salmonid fish stocks and help manage salmonid fish ... -
Modelling Diurnal Variation in Bottom Trawl Catches and Potential Application in Surveys
(ICES CM documents, Working paper, 1999)Diurnal variability in bottom trawl survey catches may influence the quality of the survey results when not taken properly into account. This is especia]!.y the case if diurnal effects vary substantiaIly from year to ... -
Modelling herring target strength pressure dependence in the frequency domain
(ICES CM documents, Working paper, 2001)Improved understanding of the acoustic scattering properties of the fish is needed when trying to remove potential bias is acoustic abundance estimates. The paper address the problem of systematic pressure or depth dependency ... -
Modelling maturity ogive for Northeast Arctic saithe
(Working paper, 2008) -
Modelling rule-based behaviour: habitat selection and the growth–survival trade-off in larval cod
(ICES CM documents;2009/T:03, Working paper, 2009) -
Modelling the advection and diffusion of eggs and larvae of Northeast Arctic Greenland halibut
(ICES CM documents, Working paper, 1999)In later years there has been considerable uncertainty on the recruitment of the northeast Arctic stock of Greenland halibut (Reinhardtius hyppoglossoides). The abundance of several year classes originally considered ... -
Modelling the dispersal of Cape hake ichthyoplankton
(ICES CM documents;, Working paper, 2010) -
Modelling the dynamics of harmful blooms of Chattonella sp. in the Skagerrak and the Kattegat
(ICES CM documents;2006/E:12, Working paper, 2006)The presentation shows observations, satellite images and model results describing the growth and spreading of Chattonella sp. flagellates in the Skagerrak and the Kattegat. Chattonella sp. is a harmful alga that may cause ... -
Modelling the sources of mortality for larval haddock on Georges Bank and their effects on behavior
(ICES CM documents;2009/T:08, Working paper, 2009)Fish larvae have the ability to change their vertical position in the water column and thusly cannot be treated as passive particles in coupled biological-physical individualbased models (IBMs). The vertical variability ... -
Modelling the variability of the drift of blue whiting larvae and its possible importance for recruitment
(ICES CM Documents;1996/S:31, Working paper, 1996)The first 8 months of the drift of blue whiting larvae has been simulated and studied for the 20 year period 1976-1994, using the 3-dimensional numerical model system NORWECOM (the NORWegian ECOlogical Model system). The ... -
Monitoring changes in abundance of gadoids with varying availability to surveys
(ICES CM Documents;1991/G:76, Working paper, 1991)The use of scientific survey data for assessing abundance of commercially important fish stocks has become a managerial necessity in many regions. Errors and bias in estimates from such surveys may thus have great economic ... -
Monitoring ecosystems using research surveys: Maximizing information and minimizing cost
(ICES CM documents, Working paper, 2001)Indices or estimates of abundance generated by research vessel surveys are becoming ever more important for assessing marine resources. Most often survey abundance indices are used in conjunction with commercial catch data ... -
Monitoring ecosystems using research surveys; maximizing information and minimizing cost
(ICES CM Documents;2002/J:5, Working paper, 2002)Indices or estimates of abundance generated by research vessel surveys are becoming ever more important for assessing marine resources. Most often survey abundance indices are used in conjunction with commercial catch data ... -
Monitoring fish communities at drifting FADs: an autonomous system for data collection in an ecosystems approach
(ICES CM documents;2009, Theme session I, Working paper, 2009)An increasing proportion of landings by tuna purse seine fishing vessels are taken around drifting Fish Aggregating Devices (FADs). Although these FADs and their use by the fishing industry to capture tropical tuna have ... -
Monitoring the Norwegian Coastal Zone Environment (MONCOZE)
(ICES CM Documents;2002/W:3, Working paper, 2002)Introduction: The Norwegian marine coastal environment is characterized by the interaction of complex and coupled physical and biochemical upper-ocean and atmospheric boundary layer processes at spatial and temporal scales ... -
More on the frequency dependence of target strength of mature herring
(ICES CM Documents;1993/B:30, Working paper, 1993)The hibernating stock of Norwegian spring-spawning herring has been acoustically surveyed in a fjord system in northern Norway in December 1992. The survey frequencies are 18, 38, 120, and 200 kHz. When the corresponding ... -
Morphological development of halibut (Hippoglossus hippoglossus) larvae with special reference to mouth development and metamorphosis
(ICES CM Documents;1987/F:18, Working paper, 1987)Halibut (Hippoglossus hippoglossus) larvae were raised from hatching to beyond metamorphosis in 11.5 m3 plastic bags with a temperature stable around 6°C. Standard length, myotome height, eye diameter and yolk sac length ... -
Mortality and injuries of haddock (Melanogrammus aeglefinus) that are caught by pelagic longline
(ICES CM documents, Working paper, 2002)By-catches of haddock (Melanogrammus aeglefinus) below legal size (44 cm total length) in the seasonal pelagic longline fisheries for haddock off the coast of Finnmark, northern Norway, are often high. The small fish are ... -
Mortality and injuries of haddock, cod and saithe escaping through codend meshes and sorting grids
(ICES CM documents, Working paper, 2002)Mortalities and injuries of the gadoids haddock (Melanogrammus aeglefinus L.), cod (Gadus morhua L.) and saithe (Pollachius virens L.) were studied after codend and grid escapement in two full scale trials in 2000 and 2001 ... -
Mortality of herring during the larval stage
(ICES CM Documents;1968/Sy:4, Working paper, 1968)