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Use of microencapsulated diets in the culture of giant clam larvae
Book chapter   Peer reviewed

Use of microencapsulated diets in the culture of giant clam larvae

Paul C Southgate
Giant clams in Asia and the Pacific, pp.155-160
ACIAR Monograph, 9, Australian Centre for International Agricultural Research
1988
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Abstract

Fisheries Sciences giant clam culture giant clam fisheries mariculture
The digestion of microcapsules and assimilation of encapsulated nutrients by giant clam larvae were investigated. Larvae readily ingested the four types of microcapsules used in this study. Ingested microcapsu\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\es took up to 72 hours to be completely digested. Radioactivity from microencapsulated 14C-labelled carbohydrate and lipid was incorporated into larval tissues, demonstrating digestion of microcapsules and the assimilation of encapsulated nutrients. In a growth trial using a simple microencapsulated diet, 1.68070 of larvae fed the artificial diet survived to 1 month post metamorphosis, compared to a survival of 1.7070 for larvae fed /sochrysis go/bona. Larvae that were starved throughout development did not survive beyond metamorphosis. The implications of the results of this study, and the potential for use of microcapsuies in giant clam hatcheries, are discussed.

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