Hard Coral (Scleractinia) Recruitment Based on the Geomorphology Zone in Bintan Island Waters, Riau Islands

Abstract

The health of coral reef ecosystems can be seen through the emergence of coral recruitment. Aim of this research was to compared the scleractinia coral recruitment list based on genus, life form, and variations in size of the scleractinia coral recuit in the waters of Kampung Baru Lagoi and Teluk Bakau Village, Bintan Regency by geomorfology zone. The research was conducted using a Purposive sampling method in consideration of the presence of scleractinia coral in reef flat and reef slope areas using a 1x1 m square frame mounted along a 70 m transverse line parallel to the shoreline. Research has found 164 colonies of 24 genus dominated by Favia and Favites. Based on the most extensive life form of Coral encrusting and Coral massive variations in size 4.5-6 cm or medium category. The results of t test showed that the geomorphological differences in the research locations did not have a significant impact on the abundance of corals recruitment

Ecological conditions and coral recovery in Jaboi waters, Weh Island Sabang Indonesia.

“…In composition, the percentage of Favites juvenile was higher than Acropora and Psammocora (Figure 5). This is similar to the research in the waters of Bintan Island that the genus Favites dominates the waters more than other genera so that there is a chance for recruitment to appear [20]. However, the density calculation results show that the juvenile coral density in Jaboi waters is in a very low condition, with a value of 0.04 colonies/m 2 .…”

Komposisi Jenis Karang Keras (Scleractinia) di Perairan Pantai Utara Pulau Ambon

“…Scleractinia adalah kelompok karang keras yang memiliki zooxanthellae pada polipnya serta merupakan kelompok yang menyusun dan mendominasi ekosistem terumbu karang utama (Reef Building Coral) (Nurhasima et al, 2021). Menurut Sahetapy et al (2021), peranan dan manfaat ekosistem terumbu karang sangat besar di dalam perairan misalnya sebagai tempat tinggal, tempat mencari makan, tempat memijah, tempat asuhan, tempat berlindung berbagai jenis biota laut serta sebagai area keberlangsungan siklus biologi, kimiawi dan fisika secara global.…”