Blar i Published in cooperation with others på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920"
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The inability of the 0-group saithe survey to forecast the strenght of the year-classes entering the fishery
(PINRO-IMR Symposium, Conference object, 1995)An 0-group saithe trawl survey was conducted annually in the Norwegian Sea and outside the Norwegian coast north of 62"N in April-May 1985-1992. The survey aimed at covering the distribution of 0-group saithe in the open ... -
The influence of fish behaviour on acoustic abundance estimates during the spawning season in Norwegian spring-spawning herring
(ICES CM documents, Working paper, 2001) -
Interactions between cod (Gadus morhua) and deep sea shrimp (Pandalus Borealis) in the Barents Sea
(ICES CM documents, Working paper, 1991)For some of the most important deep sea shrimp (Pandalus borealis) areas in the Barents Sea the content of shrimp in cod (Gadus morhua) stomachs during the first part of each year in the period 1984-1990 is analysed. Total ... -
Landscape dynamics and predator-prey interactions in marine environments
(ICES CM documents, Working paper, 2004)In several sub-arctic marine ecosystems of the North Atlantic capelin are the primary prey item for cod, and the trophic interaction between capelin and cod is a central energetic pathway. However, in the North Pacific ... -
The language of fishery management advice offered by ICES
(ICES CM documents, Working paper, 2003)Since the establishment of the Exclusive Economic Zones in the mid 1970s, several exploited fish stocks in the Northeast Atlantic have been managed by total allowable catch (TAC). The advice on annual levels of TAC, as ... -
Length dependant corrections of survey estimates of cod and haddock in the Barents Sea
(ICES CM documents, Working paper, 1994)This paper describes an attempt to utilize new information on gear selectivity and fish target strength to improve time series of survey estimates. Swept area estimates and acoustic estimates of cod and haddock in the ... -
Longterm studies on spawning in Arcto - Norwegian cod - mortality pattern of eggs and early larvae
(ICES CM documents, Working paper, 1998) -
Management of the shrimp fishery (Pandalus borealis) in the Barents Sea and Spitsbergen area
(IMR/PINRO Joint Report Series, Conference object, 2004) -
Management of the shrimp fishery (Pandalus borealis) in the Barents Sea and Spitsbergen area
(IMR/PINRO Joint Report Series, Conference object, 2004) -
Modelling age-dependent natural mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea
(PINRO-IMR Symposium, Conference object, 1995)Understanding the patterns of mortality in the juvenile stages is essential for improving current stock assessment procedures. A crucial aspect is at which stage in the life cycle of fish is year-class strength determined. ... -
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 ... -
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 ... -
North-East Arctic Cod and Haddock Sub-group
(ICES CM documents, Working paper, 2000) -
Norwegian combined acoustic and bottom trawl surveys for demersal fish in the Barents Sea during winter
(ICES CM documents, Working paper, 1997)A combined acoustic and bottom trawl survey for demersal fish in the Barents Sea has been conducted annually since 1981. The main aim is to map the spatial distribution and obtain indices of abundance (numbers at age) ... -
The Norwegian fisheries for Norway pout
(ICES CM Documents;1964/120, Working paper, 1964) -
Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1982
(ICES CM documents, Working paper, 1982)An acoustic survey and a bottom trawl survey were carried out in the Barents Sea during winter 1982. Both surveys showed that there has been a reduction in the total number of cod of about 50% and about 75% for haddock in ... -
Norwegian spring spawning herring (Clupea harengus L.): protection of spawning areas in relation to changes in migration pattern
(ICES CM documents, Working paper, 1998) -
Numerical domination and herring migrations
(ICES CM documents, Working paper, 2006)There is accumulating evidence in favour of the hypothesis that herring migrations are influenced by social learning. The “adopted-migrant hypothesis” postulates that recruit spawning herring learn migration patterns by ... -
On acoustic identification, sizing and abundance estimation of fish
(ICES CM documents, Working paper, 1970) -
On the problem of determining the relationship between integrated echo intensity and fish density
(ICES CM documents, Working paper, 1975)