Assimilation Dynamics of Different Diet Sources by the Sea Cucumber Holothuria scabra, with Evidence from Stable Isotope Signature

dc.contributor.authorIndriana, Lisa F.en_US
dc.contributor.authorWahyudi, A’an J.en_US
dc.contributor.authorKunzmann, Andreasen_US
dc.date.accessioned2019-12-06T09:18:30Z
dc.date.available2019-12-06T09:18:30Z
dc.date.issued2018-08
dc.description.abstractThe sea cucumber Holothuria scabra has a high commercial value and a great potential to be cultivated. A thorough feeding strategy is needed to overcome juvenile rearing technique constraints. Stable isotope analysis can be used for determining diet sources of sea cucumbers that play a role as deposit feeders. This study aims to determine suitable diet sources and elucidate the potential of organic matter assimilation of H. scabra by combining three different mixed diets including 10% seagrass Enhalus acoroides bulk, 45% grass Pennisetum purpureum and 45% of cow feces (diet A); 20% seagrass E. acoroides, 40% grass P. purpureum and 40% of cow feces (diet B) and 33% seagrass E. acoroides, 33% grass P. purpureum and 33% cow feces (diet C) and identifying the fecal pellet isotopic properties and compare it to the diet sources and the surrounding sediment. Stable isotope signature of H. scabra and its prospected diet sources, altogether with sediments and fecal pellets were plotted in a conservative bi-plot δ13C and δ15N. The isotopic value of fecal pellets and diet sources indicate a low assimilation rate, the organic matter contained in the sediment is similar to that of the diet sources. Sea cucumber feeds the bulk of the sediment and the detritus of the diet sources and then assimilates the organic matter as soon as the bulk enters the intestine. Due to the low assimilation rates, we suggest for the mariculture of H. scabra that the food should be homogenised and then mixed into the sediment, where the sea cucumber is cultured.en_US
dc.identifier.affiliationsResearch and Development Division for Marine Bio Industry, Indonesian Institute of Sciences LIPI, Lombok, Indonesia.en_US
dc.identifier.affiliationsResearch Center for Oceanography, Indonesian Institute of Sciences LIPI, Jakarta, Indonesia.en_US
dc.identifier.affiliationsLeibniz Center for Tropical Marine Research (ZMT), Bremen, Germany.en_US
dc.identifier.citationIndriana Lisa F., Wahyudi A’an J., Kunzmann Andreas . Assimilation Dynamics of Different Diet Sources by the Sea Cucumber Holothuria scabra, with Evidence from Stable Isotope Signature. Annual Research & Review in Biology. 2018 Aug; 28(2): 1-10en_US
dc.identifier.issn2347-565X
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/187932
dc.languageenen_US
dc.publisherScience Domain Internationalen_US
dc.relation.issuenumber2en_US
dc.relation.volume28en_US
dc.source.urihttps://doi.org/10.9734/ARRB/2018/42591en_US
dc.subjectFeeden_US
dc.subjectseaweeden_US
dc.subjectaquacultureen_US
dc.subjectsedimenten_US
dc.subjectorganic matteren_US
dc.titleAssimilation Dynamics of Different Diet Sources by the Sea Cucumber Holothuria scabra, with Evidence from Stable Isotope Signatureen_US
dc.typeJournal Articleen_US
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