Blar i Havforskningsinstituttet på emneord "fiskelarver"
Viser treff 21-40 av 102
-
Estimated hatching date and growth history of Norwegian spring spawning herring (Clupea harengus L.) from otolith data of larvae of the 1990 yearclass
(ICES CM Documents;1991/H:14, Working paper, 1991)This study was performed on herring larvae of the 1990 yearclass of Norwegian spring spawners. The larvae were caught in May on the Norwegian shelf in the area from 64 °N - 69 °N. There was one size group of larvae with ... -
Et meget godt år for loddelarvene
(Havforskningsnytt, Working paper, 1998) -
Feeding and vertical distribution of cod larvae in relation to availability of prey organisms
(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 ... -
Feilutviklinger hos kveitelarver
(Havforskningsnytt, Working paper, 1995) -
Food and feeding of young herring larvae of Norwegian spring spawners
(ICES CM Documents;1976/H:36, Working paper, 1976)The gut contents of young herring larvae sampled each hour from 4 to 9 April 1967 around a floating drogue at three depth intervals were examined to study their feeding. Copepod eggs constituated more than 90% of the ... -
The food of herring larvae of Norwegian spring spawners
(ICES CM Documents;1968/Sy:5, Working paper, 1968) -
Forekomst av egg og yngel av fisk i vest- og nordnorske kyst- og bankfarvann våren 1960
(Fisken og havet;1961 - Nr. 4, Journal article, 1961)In 1960 cod eggs and larvae were more abundant at Skrova in the Lofoten area than in the previous year (Table 1). Maxima of spawning and hatching occurred 14 days earlier than in 1959. On the western side of the Lofoten ... -
Forekomst av egg og yngel av fisk i vest- og nordnorske kyst- og bankfarvann våren 1961
(Fisken og havet;1962 - Nr. 1, Journal article, 1962)In 1961 cod eggs and larvae were more scarce in the Lofoten area than in the previous year (Table 1). Maxima of spawning and hatching occurred later than in 1960. In April cod eggs were relatively abundant in the inner ... -
Forekomst av egg og yngel av fisk i vest-norske kyst- og bankfarvann og ved Skrova i Lofoten våren 1962
(Fisken og havet;1962 - Nr. 3, Journal article, 1962)In 1962 cod eggs and larvae were a little more numerous in the Lofoten area than in the previous year. (Table 1). Maxima of spawning and hatching occurred a fortnight earlier than in 1961. Eggs of saithe and Norway pout ... -
Forskningsstrategi på fiskens tidlige livsfaser
(Rapport/Notat Biologisk og Kjemisk Oseanografi;Nr. BKO 8906, Working paper, 1989-09-01) -
Genetisk merkede torskelarver gir svar på gamle stridsspørsmål
(Havforskningsnytt, Working paper, 1995) -
Green water in larviculture - An experiment with natural phytoplankton in tanks for first feeding of halibut larvae (Hippoglossus hippoglossus L.)
(ICES CM Documents;1990/F:61, Working paper, 1990)At 232 day degrees, halibut larvae were transferred from indoor tanks to 1.7 m^3 outdoor tanks for first feeding. The number in each tank was approximately 750. Three tanks were continuously given algal suspension ("green ... -
Growth of Atlantic herring larvae (Clupea harengus L.) in response to climatic long term trends (NAO) and to hydrographical features in the northern North Sea in the period 1990- 1997
(ICES CM Documents;1999/L:26, Working paper, 1999)Herring larvae were sampled during the IHLS in the ICES area IVa from 1990 to 1997. Larval growth was determined based on otolith microstructure analysis from larvae of 7-25mm standard length. The data were correlated ... -
Herring larvae (Clupea harengus) investigations in the Skagerrak area, December 1987 to March 1988. A preliminary report
(ICES CM Documents;1988/H:20, Working paper, 1988)From December 1987 to March 1988 two transects, Torungen - Hirtshals and Oksøy - Hanstholm, were performed once a month for sampling of herring larvae. The gear used was a 9 feet Isaac-Kid Midwater trawl sampling in the ... -
Herring larvae survey in the Skagerrak, Autumn 1966
(ICES CM Documents;1967/H:27, Working paper, 1967) -
Illumination in first feeding tanks for marine fish larvae
(ICES CM Documents;1992/F:6, Working paper, 1992)Illumination levels were measured in three artificially illuminated tanks: a black tank, a white tank and a tank with black sides and white bottom, in order to test how well normal tank illumination in different tank ... -
Incubation of halibut yolk sac larvae improved by addition of freshwater and oxygen
(ICES CM Documents;1998/L:14, Working paper, 1998)Halibut fry has been produced regularly by scientific and commercial institutions since late 80- ties. The yearly number of halibut fry produced have, however, not fulfllled the optimistic expectations. This could partly ... -
Induced deformities on larvae of the Atlantic halibut (Hippoglossus hippoglossus L.). A new experimental approach.
(ICES CM Documents;1990/F:45, Working paper, 1990)Introduction: The atlantic halibut is viewed as a promising species for cold water aquaculture, and have been subjected to extensive research efforts both in Norway and in U.K. the later years. As the biology, and ... -
Intraspecific variations in size, bouyancy and growth of eggs and early larvae of arcto-norwegian cod, Gadus morhua L., due to parental and environmental effects
(ICES CM Documents;1970/F:28, Working paper, 1970) -
Kartlegging av biokjemisk innhold i copepoder som basis for kvalitetsvurdering av fôr i oppdrett av marin fiskeyngel
(Fisken og havet, Research report, 2003)