Study Of Hard Coral (Scleractinia) Recruitment In The Molas Waters, Manado City

• DOI: 10.35800/jip.v10i1.37489
• Publication Date: 2022-02-17T01:13:59Z
• Authors: Aris Putra Oli; Kakaskasen A Roeroe; Carolus P Paruntu; Janny D Kusen; Indri S Manembu; Stephanus V Mandagi
• Keywords: Porites; Acropora; Acanthaster; Scleractinia; Hermatypic coral

Coral recruitment is the entry of new coral individuals into reef populations due to reproduction or migration. Juvenile result metamorphosis and growth planula measuring 5 cm attached certain substrates. There are two types substrates in waters, stable unstable such as rubble. The purpose this study was hard recruitment, both terms density, composition juvenile colony types, size, type substrate occupied by corals. This research conducted August 2021 waters Molas, Bunaken District, Manado City. method used for site selection purposive sampling data collection using a with quadrant transects. results showed that density at 8,43 colonies/m2. percentage attachment on 90% 10% average size corals 2.4cm. genus found were Acropora, Anacropora, Coeloseris, Cycloseris, Cyphastrea, Echinopora, Favites, Fungia, Galaxea, Goniastrea, Isopora, Leptastrea, Leptoseris, Lobophyllia, Merulina, Montastrea, Montipora, Oulophyllia, Pachyseris, Pavona, Platygyra, Plasiastrea, Pocillopora, Porites, Psammocora, Scolymia, Seriatopora, Symphyllia, Trachyphyllia. Of entire genus, Porites dominated number juveniles many 36 colonies.Keywords: coral, ScleractiniaAbstrakRekrutmen karang adalah masuknya individu baru pada populasi terumbu dikarenakan reproduksi ataupun migrasi. Juvenil merupakan bentuk hasil dan pertumbuhan yang berukuran ≤ menempel substrat tertentu. Terdapat dua tipe di perairan, stabil tidak seperti pecahan (rubble). Tujuan penelitian ini untuk mempelajari tentang rekruitmen keras, baik dari densitas, komposisi jenis koloni juvenil karang, ukuran, hingga ditempati oleh karang. Penelitian dilakukan bulan Agustus perairan Molas Kecamatan Kota Manado. Metode digunakan pemilihan lokasi metode pengumpulan menggunakan dengan transek kuadran. Hasil menunjukan bahwa densitas sebesar koloni/m2. Persentase penempelan 10%. Ukuran rata-rata 2,4cm. Komposisi ditemukan Dari keseluruhan didominasi jumlah sebanyak koloni.Kata kunci: rekrutmen, scleractinia