Blar i Published in cooperation with others på forfatter "Øiestad, Victor"
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A genetic marker for artificially reared cod (Gadus morhua L.)
Jørstad, Knut Eirik; Øiestad, Victor; Paulsen, Ole Ingar; Naas, Kjell Emil; Skaala, Øystein (ICES CM Documents;1987/F:22, Working paper, 1987)Artificially reared cod at the Aquaculture Station Austevoll on the west coast of Norway, were screened for genetic markers by using biopsies of white muscle, individual tags and enzyme genotype as determined by starch ... -
Application of larval fish population dynamics in enclosure systems in production of marine fish fry
Øiestad, Victor (ICES CM Documents;1983/F:6, Working paper, 1983) -
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, ... -
Feeding and vertical distribution of cod larvae in relation to availability of prey organisms
Ellertsen, Bjørnar; Solemdal, Per; Sundby, Svein; Tilseth, Snorre; Westgård, Trond; Øiestad, Victor (Conference object, 1979)The year-class strength of the Arcto-Norwegian cod stock varies on an annual basis by a factor of about 20:1 and is determined at the 0-group stage (about 1/2 year old cod). Since the number of eggs spawned far exceeds the ... -
Fjordranching with conditioned cod
Midling, Kjell; Kristiansen, Tore S.; Ona, Egil; Øiestad, Victor (ICES CM Documents;1987/F:29, Working paper, 1987)In June 1986, 1600 pond-reared one-year old cod were released into a fjord after being conditioned with a pulsed 160 Hz sound signal to search for food at a feeding location. Echosounders, UW-video and ultrasonic ... -
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 ... -
Growth patterns in otoliths as an indication of daily growth variations of larval herring (Clupea harengus) from an experimental ecosystem
Gjøsæter, Harald; Øiestad, Victor (ICES CM Documents;1981/H:31, Working paper, 1981)Larval herring were released in a large outdoor basin four days after hatching and the mean growth in length and weight of the herring larvae and fry was monitored for 100 days. The food supply was estimated from weekly ... -
The influence of light and food density on the feeding success in larvae of cod (Gadus morhua L.); field and laboratory observations
Ellertsen, Bjørnar; Moksness, Erlend; Solemdal, Per; Strømme, Tore; Tilseth, Snorre; Øiestad, Victor (ICES CM Documents;1976/F:34, Working paper, 1976) -
Large-scale rearing of cod fry (Gadus morhua) in an inlet
Øiestad, Victor (ICES CM Documents;1981/F:11, Working paper, 1981) -
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 ... -
Mass-production of cod fry in a pond in western Norway, with additional feeding post-metamorphosis
Øiestad, Victor; Kvenseth, Per Gunnar; Folkvord, Arild (ICES CM Documents;1983/F:5, Working paper, 1983) -
Predation on fish larvae as a regulatory force illustrated in enclosure experiments with large groups of larvae
Øiestad, Victor (ICES CM Documents;1983/L:39, Working paper, 1983) -
Preliminary report of investigations of cod-eggs and larvae in the Lofoten area in the years 1968-1972
Smedstad, Odd M.; Øiestad, Victor (ICES CM Documents;1974/F:37, Working paper, 1974) -
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. ... -
Rearing of halibut : I. Incubation and the early larval stages
Solemdal, Per; Tilseth, Snorre; Øiestad, Victor (ICES CM Documents;1974/F:41, Working paper, 1974) -
Rearing of halibut larvae (Hippoglossus hippoglossis L.) to metamorphosis and beyond.
Øiestad, Victor; Haugen, Arne S. (ICES CM Documents;1980/F:9, Working paper, 1980)A female halibut caught by gill-net was stripped and the eggs were imediately fertilized and incubated in the laboratory. About 50% of the eggs hatched when incubated in a refrigerator in stagnant water treated with ... -
A study on survival and growth of fish larvae in a large basin, related to feeding conditions : A preliminary study on herring larvae (Clupea harengus L.) and fry
Ellertsen, Bjørnar; Solemdal, Per; Tilseth, Snorre; Øiestad, Victor (ICES CM Documents;1975/E:44, Working paper, 1975) -
Vertical distribution and feeding of cod larvae in relation to occurrence and size of prey organisms
Ellertsen, Bjørnar; Moksness, Erlend; Solemdal, Per; Strømme, Tore; Tilseth, Snorre; Westgård, Trond; Øiestad, Victor (ICES CM Documents;1977/L:33, Working paper, 1977)