Flødevigens rapportserie (1982-1992): Recent submissions
Now showing items 61-67 of 67
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Development and mortality of cod (Gadus morhua L.) eggs and larvae in different temperatures. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)This experiment was carried out as a part of a project concerning thermal pollution from a power plant. The paper deals with development and mortality of cod eggs and larvae in different temperatures (6O-18 degrees C). ... -
Ambryogenesis and growth of otoliths in the cod (Gadus morhua L.). In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)The embryogenesis and growth of the otoliths in the cod (Gadus morhua L.) was studied by light microscopy and transmission electron microscopy. The first indication of otolith formation was the appearance of electron-dense ... -
Water balance in cod eggs. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)The yolk osmolarity of cod eggs decreases from about 400 mOsm 2 days after spawning to 300 mOsm at hatching, as opposed to a sea water osmolarity of c. l000 nOsm. The osmolarity difference forces an osmotic water loss upon ... -
Properties of a new artificial diet for fish larvae, including cod Gadus morhua L. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)A dry feed produced from cod roe has been shown to support growth of cod larvae, although not beyond metamorphosis. Cod larvae respond to the feed by producrng trypsin. Since cod roe is very rich in polyunsaturated fatty ... -
A relationship between the number of growth increments on the otoliths and age of larval and juvenile cod, Gadus morhua L. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)A study of the relationship between the number of growth increments on the otoliths and age was based on larval and juvenile cod, Gadus morhua L., from laboratory and pond reared populations. Lapilli were larger than ... -
The peculiarity of the development of White Sea cod. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)The paper discusses the main results of many years of research into spawning conditions and embryonic and larval developmenr of the White Sea cod, i.e., peculiaritres in morphogenesis, in the formation, structure and ... -
Large-scale rearing of cod fry on the natural food production in enclosed pond
(Flødevigen rapportserie, Research report, 1983-06)