Effects of temperature, salinity and pH on larval growth, survival and development of the sea cucumber Holothuria spinifera Theel

Asha, P S and Muthiah, P (2005) Effects of temperature, salinity and pH on larval growth, survival and development of the sea cucumber Holothuria spinifera Theel. Aquaculture, 250 (3-4). pp. 823-829.

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    Abstract

    For large-scale seed production of sea cucumbers through a hatchery system, it is imperative to know the effects of environmental parameters on larval rearing. Auricularia larvae (48 h post-fertilization) were obtained from induced spawning of Holothuria spinifera and used in experiments to ascertain the effects of temperature, salinity and pH on the growth and survivorship of the larvae. The larvae were reared for 12 days at temperatures of 20, 25, 28 and 32 °C; salinities of 15, 20, 25, 30, 35 and 40 ppt; and pH of 6.5, 7.0, 7.5, 7.8, 8.0, 8.5 and 9.0. The highest survivorship and growth rate and fastest development of auricularia indicated that water temperature of 28–32 °C, salinity of 35 ppt and pH of 7.8 were the most suitable conditions for rearing larvae of H. spinifera.

    Item Type: Article
    Uncontrolled Keywords: Larval rearing; temperature; salinity; sea cucumber; Holothuria spinifera
    Subjects: Echinoderms > Seacucumber
    Aquaculture
    Divisions: CMFRI-Kochi > Mariculture
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Mariculture
    CMFRI-Kochi > Mariculture
    Depositing User: Arun Surendran
    Date Deposited: 28 Oct 2010 09:48
    Last Modified: 09 Sep 2015 15:34
    URI: http://eprints.cmfri.org.in/id/eprint/5784

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