Effects of artificial and natural materials ropes as substrates for settling and metamorphosis of pediveliger pearl oyster, Pinctada maxima (Jameson, 1901)

Medy Ompi, Fontje Kaligis, Stephanus Mandagi, Kathe Jensen

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    Abstract

    A study aimed at investigating the effects of four different materials ropes as substrates for settling and metamorphosis of tropical oyster, Pinctada maxima, pediveligers was conducted at laboratory scale. The number of pediveligers attached and metamorphosed on each substratum were counted at the termination of the experiment. Increment in shell length during settling and metamorphosis was also measured. Settling and metamorphosis were analyzed using One-Way ANOVA with substratum as the main effect. Two-Way ANOVA with time and substratum as the main effect on growth was also tested. The results showed that the settling and metamorphosis of pediveliger were affected by the substratum. The number of settled and metamorphosed pediveligers on polypropylene rope, natural ropes of Arenga piñata and Cocos nucifera was significantly higher than on the bottom of Pyrex glasses. No significant difference between numbers of larvae settled on polypropylene and natural ropes of Arenga piñata and Cocos nucifera appeared. A significant effect of time, but not of substratum, on growth occurred. Overall, settling and metamorphosis of P. maxima pediveliger larvae were strongly affected by artificial and natural ropes, while metamorphosis occurred haphazardly on the Pyrex glass. Growth occurred after settling and metamorphosis.

    OriginalsprogEngelsk
    Titel1st International Conference on Maritime Sciences and Advanced Technology "Ocean Science and Technology Toward a Global Maritime Axis"
    Vol/bind162
    ForlagIOP Publishing
    Publikationsdato2018
    Artikelnummer012031
    DOI
    StatusUdgivet - 2018
    Begivenhed1st International Conference on Maritime Sciences and Advanced Technology: Ocean Science and Technology Toward a Global Maritime Axis, MSAT 2017 - Denpasar, Bali, Indonesien
    Varighed: 3 aug. 20175 aug. 2017

    Konference

    Konference1st International Conference on Maritime Sciences and Advanced Technology: Ocean Science and Technology Toward a Global Maritime Axis, MSAT 2017
    Land/OmrådeIndonesien
    ByDenpasar, Bali
    Periode03/08/201705/08/2017
    NavnIOP Conference Series: Earth and Environmental Science
    Nummer162
    ISSN1755-1307

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