Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Pittman, Karin"
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Deepwater flowthrough as a temperature stabilizer in rearing of halibut (Hippoglossus hippoglossus) fry
Berg, Leif; Naas, Kjell Emil; Pittman, Karin (ICES CM Documents;1987/F:16, Working paper, 1987)Through the period of yolk sac absorption, halibut larvae were kept in plastic bags in plastic basins with flowthrough of deepwater. When maintaining sufficient flowthrough, in this period the temperature in the bags ... -
Effects of light on the development, activity and mortality of halibut (Hippoglossus hippoglossus L.) yolk sac larvae
Skiftesvik, Anne Berit; Opstad, Ingegjerd; Bergh, Øivind; Pittman, Karin; Skjolddal, Lillian (ICES CM Documents;1990/F:43, Working paper, 1990)Halibut yolk sac larvae were kept at different light intensities from Day 1 posthatch. Measurements of activity and swimming speed showed that larvae that were kept in darkness were more active, but had lower swimming ... -
Effects of organic waste from marine fish farms on the seabottom beneath the cages
Hansen, Pia Kupka; Ervik, Arne; Pittman, Karin (ICES CM Documents;1990/F:34, Working paper, 1990)Seven fish farms and a control station were investigated four times during one year. The farms represented a gradient of increasing accumulation of organic waste on the sea bottom. The thickness and the organic content ... -
Morphological development of halibut (Hippoglossus hippoglossus) larvae with special reference to mouth development and metamorphosis
Pittman, Karin; Berg, Leif; Naas, Kjell Emil (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 ... -
Natural and cultivated zooplankton as food for halibut (Hippoglossus hippoglossus) larvae
Naas, Kjell Emil; Berg, Leif; Klungsøyr, Jarle; Pittman, Karin (ICES CM Documents;1987/F:17, Working paper, 1987)Natural zooplankton were pumped into a collector and size-fractionated. The zooplankton smaller than 350 ym were fed on a diatom dominated algal suspension cultured in 3 m deep out-door plastic bags. Halibut larvae ... -
Organic waste and antibiotics from aquaculture
Samuelsen, Ole Bent; Torsvik, Vigdis; Hansen, Pia Kupka; Pittman, Karin; Ervik, Arne (ICES CM Documents;1988/F:14, Working paper, 1988)During the past year three joint projects have been conducted concerning the fate of organic waste and antibiotics from various Norwegian fish farms. The projects are investigating the following topics: - decomposition ... -
Preliminary report on the effects of temperature on the development of eggs and larvae of halibut (Hippoglossus hippoglossus) and on the bacterial population in the incubators
Bergh, Øivind; Opstad, Ingegjerd; Pittman, Karin; Skiftesvik, Anne Berit; Skjolddal, Lillian; Strand, Hans Kristian; Vanthuyne, Virginie (ICES CM Documents;1989/F:19, Working paper, 1989)Eggs were stripped from one female of the halibut broodstock at Austevoll Aquaculture Station, and fertilised with sperm from two males immediately before incubation. Eggs were held in nine open-circulation 250 l incubators ...