Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Pedersen, Torstein"
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Do capelin larvae deposit daily increments in their otoliths?
Ivarjord, Trond; Pedersen, Torstein; Moksness, Erlend (ICES CM documents, Working paper, 2004)Analysis of increment formation in larval fish otoliths has provided valuable information about growth, transport and mortality processes of larvae in wild stocks, but the technique has not been widely used on capelin ... -
Growth rates and age distributions of capelin (Mallotus villosus) larvae in the Barents Sea investigated by otolith increment analysis
Jakobsen, Ronny A.; Pedersen, Torstein; Moksness, Erlend (ICES CM documents, Working paper, 2004)In order to investigate age distributions and growth rates, otoliths from capelin larvae collected from the Barents Sea during the summers 2001-2003 were analysed using otolith microstructure analysis. Stations were ... -
Mass production of juvenile Atlantic cod (Gadus morhua L.) in a pond: results and new approaches in 1985
Folkvord, Arild; Kvenseth, Per Gunnar; Pedersen, Torstein; Øiestad, Victor (ICES CM Documents;1985/F:63, Working paper, 1985)Large scale production of juvenile Atlantic cod has been carried out since 1980. A break-through was obtained in 1983 with high survival rates of cod larvae to metamorphosis. This year we have tried to solve two remaining ... -
Mass-production of cod fry (Gadus morhua L.) in a large basin in western Norway - a new approach
Øiestad, Victor; Kvenseth, Per Gunnar; Pedersen, Torstein (ICES CM Documents;1984/F:16, Working paper, 1984)In February 1984, the fresh water in a small lake was replaced by seawater pumped from 40 m depth. Four-day old cod larvae were transferred on 11 and 26 April into this seawater basin, which was 5 m above sea level with ... -
Possibilities and limitations of extensive aquaculture of marine fish: evaluation of current results with Atlantic cod and further prospects
Kristiansen, Tore S.; Pedersen, Torstein; Svåsand, Terje (ICES CM documents, Working paper, 1998) -
Predation of oyster larvae by Aurelia aurita in a Norwegian oyster pond
Aase, Hans; Misund, Ole Arve; Pedersen, Torstein (ICES CM Documents;1986/F:21, Working paper, 1986)In the norwegian oyster spatting ponds several factors may influence the spat production. During a basic, general study in a pond in 1983-84, Aurelia aurita was demonstrated to be a heavy predator on pelagic oyster ... -
Size of spawning Arcto-Norwegian cod (Gadus morhua L.) and the effects on their eggs and early larvae
Solemdal, Per; Bergh, Øivind; Dahle, Geir; Falk-Petersen, Inger-Britt; Fyhn, Hans Jørgen; Grahl-Nielsen, Otto; Haaland, J.M.; Kjesbu, Olav Sigurd; Løken, Sissel; Opstad, Ingegjerd; Pedersen, Torstein; Skiftesvik, Anne Berit; Thorsen, Anders (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. ...