Now showing items 1-10 of 358
Norwegian investigations on young cod and haddock in the Barents Sea during the winter 1982
(ICES CM documents1982/G:41, 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 ...
Fiskerier, energiutvinning og klimaendringer
(Conference object, 2007-11-02)
Dangerously small : Size-dependent mortality of released cod
(Conference object, 1997-09-08)
Pronounced long-term juvenation in the spawning stock of Arcto-Norwegian cod (Gadis morhua) and possible consequences for recruitment
(Journal article; Peer reviewed, 2008-01)
The oldest and largest individuals are disappearing from many fish stocks worldwide as a result of overexploitation. This has been suggested to impair recruitment through decreasing the reproductive capacity of the spawners ...
Prey selection of early juvenile cod (Gadus morhua L.) in the Barents Sea
(ICES CM documents2006/F:21, Conference object, 2006)
On the relation between ‘true’ numbers of Northeast Arctic cod and VPA- or survey-based abundance estimates
(ICES CM documents2001/Q:15, Working paper, 2001)
When assessing Northeast Arctic cod it is assumed that the estimates of numbers at age generated by a converged VPA type analysis are equal, on average, to the true numbers at age. Based on fishery independent survey ...
Landscape dynamics and predator-prey interactions in marine environments
(ICES CM documents2004/M:08, 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 ...
Stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus)
(Journal article; Peer reviewed, 2002)
Different stock–environment recruitment models for Norwegian spring spawning herring (Clupea harengus) are fitted to a time series of spawning stock, recruitment, and temperature data extending back to 1907. In addition ...
Consumption of juvenile herring (Clupea harengus) by cod (Gadus morhua) in the Barents Sea: a new approach to estimating consumption in piscivorous fish
(Journal article; Peer reviewed, 2004)
Consumption of different age groups of juvenile, Norwegian, spring-spawning herring (Clupea harengus) by northeast Arctic cod (Gadus morhua) in the Barents Sea in 1992–1997 is estimated using cod stomach content data. We ...
The relative frequency response, as derived from individually separated targets on cod, saithe and Norway pout
(ICES CM documents2004/R:16, Working paper, 2004)
The relative frequency response is an important acoustic feature used to characterise acoustic targets. This response has been defined as the sv, volume backscattering coefficient, for a specific frequency relative to ...