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Osmotic aspects of final oocyte maturation in Atlantic halibut
Østby, G.S.; Finn, R.N.; Norberg, B.; Fyhn, H.J. (2000). Osmotic aspects of final oocyte maturation in Atlantic halibut, in: Norberg, B. et al. (Ed.) Proceedings of the 6th International Symposium on the Reproductive Physiology of Fish, Bergen, Norway, July 4-9, 1999. pp. 185
In: Norberg, B. et al. (2000). Proceedings of the 6th International Symposium on the Reproductive Physiology of Fish, Bergen, Norway, July 4-9, 1999. International Symposium on the Reproductive Physiology of Fish, 6. Department of Fisheries and Marine Biology, University of Bergen: Bergen. ISBN 82-7461-048-2. 499 pp., more
In: International Symposium on the Reproductive Physiology of Fish. Museo Nacional de Ciencias Naturales. , more
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Keyword
    Marine/Coastal
Authors  Top 
  • Østby, G.S.
  • Finn, R.N.
  • Norberg, B.
  • Fyhn, H.J.
Abstract
    Direct measurements of yolk osmolality from oocytes and eggs of Atlantic halibut (Hippoglossus hippoglossus) shows for the first time that oocyte final hydration in marine teleosts is driven by a hyperosmotic yolk. An increase in the oocyte content of free amino acids, especially, but also of NH sub(4) super(+), K super(+) and Cl super(-) ions (but not Na super(+)) contribute to the hyperosmolality
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