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The sediment ingested by Holothuria tubulosa Gmel (Holothuroidea: Echinodermata)
Massin, C. (1980). The sediment ingested by Holothuria tubulosa Gmel (Holothuroidea: Echinodermata), in: Jangoux, M. (Ed.) Proceedings of the European Colloquim on Echinoderms, Brussels, 3-8 September 1979 = Actes du Colloque Européen sur les Echinoderms, Bruxelles, 3-8 septembre 1979. pp. 205-208
In: Jangoux, M. (Ed.) (1980). Proceedings of the European Colloquim on Echinoderms, Brussels, 3-8 September 1979 = Actes du Colloque Européen sur les Echinoderms, Bruxelles, 3-8 septembre 1979. A.A. Balkema: Rotterdam. ISBN 90-6191-077-3. XVIII, 428 pp., more

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Document type: Conference paper

Keywords
    Echinodermata [WoRMS]; Holothuria (Holothuria) tubulosa Gmelin, 1791 [WoRMS]; Holothuroidea [WoRMS]

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Abstract
    The associated organic fraction is clearly higher in the oesophagus sediment of Holothuria tubulosa than in the surrounding sediment. H. tubulosa appears to be able to select particles with the richest organic fraction. The organic matter of the gut content is progressively absorbed along the digestive tract. The efficiency of intestinal absorption is about 27 %. Faeces are always richer in organic content than the surrounding sediment.

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