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phospholipide

Aquatic Living Resources (1)

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Phospholipid distribution and fatty acid composition of phosphatidylcholine and phosphatidylethanolamine in sperm of some freshwater and marine species of fish
Sergey I. Drokin
Journal:

Aquatic Living Resources / Volume 6 / Issue 1 / January 1993

Published online by Cambridge University Press:

15 February 2007, pp. 49-56

Print publication:

January 1993
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The phospholipid composition and fatty acid characteristics of diacyl and plasmalogen forms ofphosphatidylcholine and phosphatidylethanolamine of sperm of five marine and five freshwater speciesof fish have been determined. There was considerable variation in composition within each group offish, which obscured any differences which are related to the osmotic environment. Since such factors as temperature, nutrition, etc. probably greatly influence the lipid composition, we failed to determine a relationship between osmolality and phospholipid composition. We have also found certain phospho-lipid peculiarities, characteristic of sperm of various species of fish.Nevertheless, as we have found previously, the molar ratio of cholesterol to phospholipids in fishsperm is determined by the salinity of the habitat.