Kerapatan dan Kelulushidupan pada Rekrutmen Karang Pocillopora damicornis (Density and Survivorship on the Recruitment of the brooding coral Pocillopora damicornis)

*Munasik Munasik  -  1Jurusan Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro,, Indonesia
Suharsono Suharsono  -  Pusat Penelitian Oseanografi, Lembaga Ilmu Pengetahuan Indonesia , Indonesia
J Situmorang  -  Fakultas Biologi, Universitas Gadjah Mada,, Indonesia
Kamiso H N  -  Jurusan Perikanan, Fakultas Pertanian, Universitas Gadjah Mada,, Indonesia
Published: 2 Sep 2014.
Open Access

Citation Format:
Abstract

Studi rekrutmen karang Pocillopora damicornis telah dilakukan dengan mengamati kerapatan juvenil pada substrat penempelan di dataran terumbu Pulau Panjang, Jepara, Jawa Tengah. Hasil menunjukkan bahwa rekrutmen terjadi sepanjang tahun dan tertinggi pada periode Agustus-Oktober. Laju rekrutmen karang di belakang terumbu (back reef) pada sisi bawah angin (selatan) lebih tinggi daripada di sisi atas angin (utara) Pulau Panjang, tampaknya hal ini berkorelasi dengan kerapatan populasi karang dewasanya. Kerapatan juvenil karang tertinggi pada substrat batu alam terjadi pada sisi bawah permukaan substrat, akan tetapi pertumbuhan juvenil karang tertinggi ditemukan di sisi atas permukaan substrat. Hal ini mengindikasikan bahwa kerapatan juvenil karang berhubungan dengan kelulusan hidup juvenil karang. Semakin tinggi kerapatan juvenil karang P. damicornis maka semakin rendah kelulusan hidup juvenil karang karena terjadinya peningkatan persaingan sesama juvenil karang dan akibat kekurangan cahaya.

Kata kunci: rekrutmen, kerapatan, kelulushidupan, karang Pocillopora damicornis

Recruitment of the brooding coral Pocillopora damicornis was studied by observing the juvenile density on the settlement plate substrate in reef flat of Panjang Island, Jepara, Central Java. The results show that recruitment occurs throughout the year and the highest in the period from August to October. The rate of recruitment of coral reefs in back reef on the leeward (south) is higher than on the windward (north) of the island, it seems to be correlated with population density of adult corals. The highest density of juvenile corals on natural substrata occurs on the lower side surface of the substrate, but the highest growth of juvenile are found on the upper side surface of the substrate. This indicates that the density of juvenile corals associated with the survival of juvenile corals. The higher density of juvenile corals P. damicornis, the lower the survival of juvenile corals due to an increase in competition among juvenile corals and due to lack of light.

Keywords: recruitment, density, survivorship, coral Pocillopora damicornis

Article Metrics:

Last update: 2021-03-06 04:48:48

  1. Coral recruitment at Gili Pandan Island, Gili Genting District, Sumenep Regency, Indonesia

    Yulia Andriyani, Wahyu Andy Nugraha. PROCEEDINGS OF THE 3RD INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2019): Exploring New Innovation in Metallurgy and , 127 , 2020. doi: 10.1063/5.0002421
  2. Reef Development on Artificial Patch Reefs in Shallow Water of Panjang Island, Central Java

    Munasik, Sugiyanto, Denny N Sugianto, Agus Sabdono. IOP Conference Series: Earth and Environmental Science, 116 , 2018. doi: 10.1088/1755-1315/116/1/012095

Last update: 2021-03-06 04:48:48

No citation recorded.