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Tissue composition and reproduction of Mytilus edulis in relation to fod availability
Pieters, H.; Kluytsman, J.H.; Zandee, D.I.; Cadée, G.C. (1980). Tissue composition and reproduction of Mytilus edulis in relation to fod availability. Neth. J. Sea Res. 14(3-4): 349-361
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer
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| Auteurs | | Top |
- Pieters, H.
- Kluytsman, J.H.
- Zandee, D.I.
- Cadée, G.C., meer
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| Abstract |
Variations in the tissue composition of the sea Mussel Mytilus edulis L. from culture beds in the western Wadden Sea were studied during the first half of 1978. Protein, glycogen and lipids were determined in the mantle tissue and non-mantle tissues of Mytilus. The content was found to fluctuate with the repeated release of gametes during the spawning season. Gamete emissions were observed in March and April. In May, however, low levels of nutrient reserves in the tissues were prolonged, in spite og high algae concentrations in the sea water. These high concentrations were caused by an algal bloom of Phaeocystis pouchetii. The glutinous colonies probably prevented food intake and digestion by Mytilus, and resulted in a delay in gonad recovery. Ultimately, at the beginning of June, glycogen content increased rapidly again, concomitant with a rapid rise in the sea water temperature. |
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