KOMPOSISI PENYUSUN TERUMBU KARANG TEPI (FRINGING REEF) DI PULAU MANDANGIN KABUPATEN SAMPANG, MADURA The Composition of Fringing Reef Formation in Pulau Mandangin, Sampang Province, Madura

Terumbu karang tepi di Pulau Mandangin tersusun substrat biotik dan abiotik dengan kedalaman tidak lebih dari 40 m. Pulau Mandangin adalah pulau kecil yang memiliki komposisi substrat dasar seperti terumbu karang dan perairannya yaitu zona leeward dan zona windward. Zona leeward adalah sisi yang membelakangi arah datangnya angin, sedangkan zona windward adalah sisi yang menghadap arah datangnya angin. Tujuan dari penelitian ini adalah untuk mengetahui komposisi penyusun terumbu karang tepi (fringing reef) dan mengetahui perbedaan komposisi penyusun terumbu karang tepi (fringing reef) antara zona leeward dan zona windward di Pulau Mandangin. Metode yang digunakan adalah Line Intercept Transect (LIT) secara vertikal, LIT dimulai dari surut terendah sampai daerah reef slope dan dilakukan pencatatan semua jenis substrat yang dibawah garis transek. Hasil penelitian menunjukkan zona fringing reef yang mengelilingi Pulau Mandangin tersusun atas substrat rubble, sand, alga, rock, dead coral, dead coral with algae, sponge, coral massive dan coral submassive. Zona leeward lebih bervariasi dari zona windward dalam susunan fringing reef. Hal ini karena angin yang terjadi di zona windward lebih besar dari zona leeward, sehingga substrat di zona windward hanya rubble dan sand.
Fringing reef in Mandangin Island comprises of biotic and abiotic substrates in depth not more than 40 m. Mandangin Island is a small island with base substrate composition mostly involving coral reef. The waters include leeward and windward zones. Leeward zone is paralleling with wind incoming direction, whereas windward zone is facing on wind incoming direction. The objective of research is to understand the composition that constitutes fringing reef and to recognize different constitutive composition of fringing reef at leeward zone and windward zone in Mandangin Island. Method of research is Line Intercept Transect (LIT) that is applied vertically. LIT starts from the lowest ebb toward the reef slope zone, and it involves registering all substrate types below transect line. Result of research indicates that fringing zone surrounding Mandangin Island consists of various substrates such as rubble, sand, alga, rock, dead coral, dead coral with algae, sponge, coral massive and coral sub-massive. Leeward zone is more diversified in fringing reef composition than windward zone. It is evident because wind occurrence at windward zone is higher than at leeward zone, and thus, substrates at windward zone include only rubble and sand.
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Last update: 2021-02-27 05:36:41
Last update: 2021-02-27 05:36:41
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