Issue |
BIO Web Conf.
Volume 112, 2024
6th EMBRIO International Symposium: “Ocean for Prosperity: Sustainably Use of the Ocean Resources for Economic Growth, Improvement of Livelihoods, and Preserve its Ocean Ecosystem Health” (EIS 2023)
|
|
---|---|---|
Article Number | 01004 | |
Number of page(s) | 10 | |
Section | Aquaculture | |
DOI | https://doi.org/10.1051/bioconf/202411201004 | |
Published online | 06 June 2024 |
Evaluation of pearl oyster (Pinctada maxima) spawning using natural and artificial induction methods to increase the seed production
Marine and Fisheries Polytechnic of Jembrana, Department of Aquaculture, Desa Pengambengan, Jembrana 82218, Bali, Indonesia
* Corresponding author: dplongitm@gmail.com
The increasing pearl jewelries production leads to an increasing demand for pearl oyster (Pinctada maxima) seeds of certain sizes. The induction spawning method is an important factor in producing pearl oyster seeds. This study aimed to evaluate natural and artificial induction methods for pearl oyster spawning using wild and farmed broodstocks to determine efficient seed production. Treatments applied were natural spawning induction of wild and farmed broodstocks (A), natural spawning induction of farmed broodstocks (B), and artificial induction of farmed broodstocks (C). After spawning completed, reproductive performances of the pearls for each treatment were observed with parameters of total number of eggs, number of hatching eggs, and the hatching rate. Pearl oyster seeds were reared for 43 days and fed twice a day with a mixture of phytoplankton. At the rearing stage, we observed the morphology, number, size, and survival of larvae. Natural spawning induction with wild male and farmed female broodstocks showed the highest total number of eggs (32,000,000 eggs) and the highest hatching rate (25%) compared to natural induction and artificial induction with all farmed broodstocks. However, natural spawning induction of wild male and farmed female broodstocks showed higher survival and normal seed growth to the spat stage compared to other spawning induction methods.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.