Now showing items 1-10 of 358
Tagging experiment results on cod in western Norway fjord areas
(ICES CM Documents;1986/G:80, Working paper, 1986)
During recent years, experiments with large scale release of artificially produced Q-group cod at locations in western Norway waters have been carried out with the aim ofincreaseing the cod catches. As the general ...
Undersøkelser av gyte- og oppvekstområder for torsk i Smøla og Aure kommuner våren og høsten 2016
(Rapport fra Havforskningen;5-2017, Working paper, 2017)
I forbindelse med etablering av en ny lokalitet for oppdrett av laks nordøst for Edøya i Smøla kommune (Nørholmen) gjennomførte Havforskningsinstituttet innledende undersøkelser av gyteog oppvekstområder for torsk (van der ...
Effects of seismic shooting on local abundance and catch rates of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus)
(Journal article; Peer reviewed, 1996)
To determine whether seismic exploration affected abundance or catch rates of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), acoustic mapping and fishing trials with trawls and longlines were conducted in the ...
Comparison of tags used on arctic cod
(ICES CM Documents;1959/80, Working paper, 1959)
Size of spawning Arcto-Norwegian cod (Gadus morhua L.) and the effects on their eggs and early larvae
(ICES CM Documents;1993/G:41, Working paper, 1993)
Using a new method for determining the stage of spawning in batch spawners, a positive correlation between the length of Arcto-Norwegian cod females, having spawned 25-75% of their eggs, and the egg diameter was established. ...
Ressurser av torsk og andre fisk i fjorder på den norske Skagerrakkysten
(Fisken og havetNr.23 - 1996, Research report, 1996)
The abundance, distribution and life history parameters of cod, Gadus morhua L., and other fish species were studied at the Norwegian Skagerrak Coast. 12 surveys were conducted in the Søndeledfjord and the Sandnesfjord ...
Acoustic abundance estimate of 0-group north-east Arctic cod and haddock
(ICES CM Documents;1997/BB:15, Working paper, 1997)
The abundance of the 1991-1994-year classes of north-east Arctic cod and haddock at the age of six month have been estimated on the basis of Norwegian acoustic data from the International 0-group fish survey in the Barents ...
Effect of size-selective mortality on growth of coastal cod (Gadus morhua L.) illustrated by tagging data and an individual-based growth and mortality model
(ICES CM Documents;1996/G:48, Working paper, 1996)
Since 1983 more than one million reared cod juveniles have been tagged and released in different areas along the Norwegian coast. The goal of the programme is to evaluate the ecological and economical potential in sea ...
Kartlegging av gytefeltene for norsk-arktisk torsk i Nord-Norge og beregning av eggproduksjonen i årene 1983-1985
(Fisken og havet1987-01, Research report, 1987)
The population fecundity of Northeast-arctic cod were computed for the years 1983, 1984 and 1985. Repeated and detailed egg surveys were conducted at the spawning sites in Lofoten and along the coast of Troms and ...
The relation between the spatial distribution of early juvenile cod (Gadus morhua L.) and zooplankton biomass in the Barents Sea
(ICES CM Documents;1997/T:32, Working paper, 1997)
The year class strength of Arcto-Norwegian cod (Gadus morhua L.) in the Barents Sea is extremely variable. One of the key indicators for a possible strong year class is water temperature since good year classes may be ...