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National Committee on Marine Sciences (NCMS)

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    Reproductive biology and early life history of the solitary coral Heliofungia actiniformis from Singapore and the Philippines
    Sayco, Sherry Lyn G; Prasetia, Rian; Todd, Peter A.; Loya, Yossi; Valencia, Brian; Calle, Lala Grace; Cabaitan, Patrick C. (Springer, 2024-01-13)
    Reproduction and early life history are central to understanding the biology and ecology of organisms, however such information is limited for solitary corals. Here, we compared the reproductive traits of the solitary coral Heliofungia actiniformis from different latitudinal locations (Singapore, 1°N and the Philippines, 16°N) and examined their early life development, settlement competency, and juvenile growth and survival. A total of 32 corals from Pulau Hantu reefs in Singapore and 102 corals from Bolinao and Anda reefs in the Philippines were studied between 2019 and 2022. Heliofungia actiniformis broadcasts spawned gametes during several nights, generally between 22:00 and 01:00, before and after full moon, from February to May in Singapore and from March to June in the Philippines. Spawning within a month occurred for up to 16 nights in Singapore and 10 nights in the Philippines. Sex change in two individuals between years was observed in the Philippines. The average egg size was smaller in Singapore than that in the Philippines. We determined that eggs were fertilized within 2 h after sperm addition, and developed into swimming larvae within 64 h, which began to settle after 24 h. Larval survival after three mo of culture was 1.72 ± 1.0% and juvenile diameter ranged from 0.33 to 1.30 mm. Asexual buds were first observed in 15 mo old juveniles that were at least 8 mm in diameter. 24 mo old juveniles were observed to detach from their stalk and the empty stalk regenerated polyps. Our results highlight the latitudinal variability in the reproductive traits of solitary corals, serve as a baseline for their early life history, and advance our understanding of their population dynamics.
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    SEAFDEC'S gab aims to strengthen aquaculture, combat illegal fishing
    Rendon, Jennifer (Daily Guardian Multi-Media Services, Inc., 2022-12-06)
    Around 60 participants from 11 member-countries of the Southeast Asian Fisheries Development Center (SEAFDEC) gathered in Iloilo City for the 45th Meeting of SEAFDEC’s Program Committee (PCM). Hosted by the SEAFDEC Aquaculture Department (AQD), the PCM meeting brings together delegates from SEAFDEC’s 11 member-countries Brunel Darussalam, Cambodia, Indonesia, Japan, Lao PDR, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam. Also in attendance are senior officials and staff from SEAFDEC’s five departments that include researchers, scientists, and experts.
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    RP's first mariculture park to rise in Guimaras
    Fernandez, Rudy A. (Philippine Star Printing Co., Inc., 2001-06-17)
    The country's first mariculture park has been established in Igang Bay, Nueva Valencia, Guimaras. The park was jointly set up by the government-hosted Southeast Asian Fisheries Development Center Aquaculture Department (SEAFDEC AQD), Department of Agriculture-Bureau of Fisheries and Aquatic Resources (DA-BFAR) and the provincial government of Guimaras. The facility will be launched on July 5 as one of the main activities during the celebration of SEAFDEC AQD's 28th anniversary.