Effect of sea weed, sea grass and powdered algae in rearing the hatchery produced juveniles of Holothuria (metriatyla) scabra, jaeger

Asha, P S and Rajagopalan, M and Diwakar, K (2004) Effect of sea weed, sea grass and powdered algae in rearing the hatchery produced juveniles of Holothuria (metriatyla) scabra, jaeger. Proceedings of the National Symposium on Recent Trends in Fisheries. pp. 79-85.

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Abstract

Holothuria scabra juveniles (>20mrn) produced in the hatchery were provided with powdered Sargassum and Cymodocea with three different sediments like fine sand, coral sand and mud at a proportion of 3: 17 in an experiment for 22days. In another experiment, powdered algae Spirulina was used in varying proportion with fine sand and Sargassum powder for 30 days. The one way ANOVA showed significant difference in growth in weight of the juveniles fed with Sargassum and Cymodocea combinations. Maximum growth rate suggested the suitability of Sargassum with fine sand or with coral E sand. No significant difference was observed in the growth in length and weight of the juveniles fed with varying proportions of Spirulina, but significant difference was observed in the weight of juveniles fed with 2% Algamac indicated that Algamac can be supplemented along with the feed.

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