Unraveling the effects of live microalgal enrichment on Artemia nauplii

Vikas, P A and Chakraborty, Kajal and Sajesh Kumar, N K and Thomas, P C and Sanil, N K and Vijayan, K K (2012) Unraveling the effects of live microalgal enrichment on Artemia nauplii. Indian Journal of Fisheries, 59 (4). pp. 111-121.

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    Abstract

    Artemia nauplii, though deficient in many essential nutrients, are used extensively in fish/shellfish larviculture. Enrichment using various diets can enhance their nutrient profile to the required level. The present study examines the effects of enrichment of Artemia nauplii with live microalgae viz., Pavlova viridis, Isochrysis galbana, Nannochloropsis oculata and Dicrateria inornata. Total length and width, survival percentage and the fatty acid profile of the microalgae enriched and unenriched nuaplii were estimated at 0, 1, 3, 5, 7 and 9 h time intervals. No significant increase in total length and width was observed between the enriched and unenriched Artemia nauplii during the study, indicating the absence of any enrichment diet induced growth rate of the nauplii. Salinity stress study revealed that the microalgae enriched nauplii can live long in low saline conditions than the unenriched nauplii. The total PUFA content of the live microalgae enriched nauplii reached maximum at 7 h post-enrichment followed by a significant drop after 9 h. The results of the study indicated that live microalgae can be used as excellent enrichment dietary sources for Artemia nauplii, which in turn can provide many of the vital nutrients essential for fish larviculture.

    Item Type: Article
    Uncontrolled Keywords: Artemia nauplii; Fatty acid; Microalgal enrichment; Salinity stress; Survival rate
    Subjects: Algae > Algal nutrition
    Aquaculture > Live Feed Culture
    Divisions: CMFRI-Kochi > Marine Biotechnology
    Subject Area > CMFRI > CMFRI-Kochi > Marine Biotechnology
    CMFRI-Kochi > Marine Biotechnology
    Subject Area > CMFRI-Kochi > Marine Biotechnology
    Depositing User: Arun Surendran
    Date Deposited: 16 Jul 2013 10:22
    Last Modified: 09 Sep 2015 15:54
    URI: http://eprints.cmfri.org.in/id/eprint/9351

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