Browsing Brage IMR by Author "Berg, Leif"
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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 ... -
Effect of turbulence and different types of fertilizers on phytoplankton and oyster larvae (Ostrea edulis) in mesocosms
Naas, Kjell Emil; Berg, Leif; Øiestad, Victor (ICES CM Documents;1986/K:41, Working paper, 1986)Different types of inorganic fertilizers were added to five cubic metres plastic bags. Different turbulent regimes were established in the bags. The effects of these manipulations on nutrient salts, chlorophyll a, ... -
Growth and survival studies of halibut (Hippoglossus hippoglossus L.) from hatching to beyond metamorphosis carried out in mesocosms
Berg, Leif; Øiestad, Victor (ICES CM Documents;1986/F:16, Working paper, 1986)To each of five floating plastic bags 1500 halibut larvae were transferred from the hatchery one day after hatching. The plastic bags had a volume of 11.5 m3, a total depth of 5.5 m and they were moored to floating ... -
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 ... -
Production of juvenile flatfish species in different sized mesocosms
Berg, Leif; Baarøy, V.; Danielssen, Didrik S.; van der Meeren, Terje; Naas, Kjell Emil; Senstad, K.; Øiestad, Victor (ICES CM Documents;1985/F:65, Working paper, 1985)Mesocosm studies with larvae of halibut (Hippoglossus hippoglossus), sole (Solea solea) and turbot (Scophthalmus maximus) was carried out at Austevoll Aquaculture Station and at Flødevigen Biological Station in 1985. ...