Seasonal changes in the fat contents of the Crustacea plankton in Lake Balaton

Farkas, Tibor and Herodek, Sándor (1960) Seasonal changes in the fat contents of the Crustacea plankton in Lake Balaton. A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 27. pp. 3-7. ISSN 0365-3005

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Abstract

Fat contents of the Crustacea plankton per dry-matter in Lake Balaton shows a regular yearly cycle with a winter maximum. Neither this cycle nor the seasonal change in fatty acid composition shown earlier can be traced back to changes found in the composition of samples according to species. Though plankton algae were not examined it has been stated for Cladophora and for its diatom cover (periphyton) that contrary to what was observed in crustaceans the amount of C₂₀-C₂₂ fatty acids is lower in winter time (cold water). It may be assumed that temperature has an immediate effect upon the metabolism of fats in crustaceans.

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