Geomorfologi Terumbu Karang dan Habitat Bentik Gugusan Pulau Biawak, Indramayu: Integrasi Studi Citra Satelit dan Sedimen Permukaan

Tubagus Solihuddin, Dwi Amanda Utami, August Daulat, Agustin Rustam

Abstract

Terletak di kawasan perairan Laut Jawa, Gugusan Pulau Biawak saat ini diprioritaskan untuk wilayah konservasi keanekaragaman hayati laut. Deskripsi tentang zona geomorfologi dan habitat bentik terumbu karang serta distribusi sedimen permukaan adalah salah satu informasi penting untuk mendukung kebijakan konservasi, walaupun hal tersebut sering luput dari perhatian para peneliti dan pengambil kebijakan. Studi ini memberikan gambaran geomorfologi terumbu karang dan habitat bentik terkait serta karakteristik sedimen permukaan dari tiga pulau di gugusan Pulau Biawak, Indramayu beserta faktor pengendali dan sifat khususnya melalui studi integrasi citra satelit dan analisis sedimen permukaan. Zona rataan terumbu menunjukkan dominasi endapan pasir dan fragmen koral serta kalkareus alga kecuali di Pulau Biawak banyak ditumbuhi Halimeda. Koloni terumbu karang tumbuh sumbur di zona lereng terumbu pada sisi bagian barat pulau pada kedalaman hingga 5 m. Tekstur sedimen menunjukkan dominasi pasir kasar tanpa pola gradasi seiring dengan perubahan geomorfologi dan habitat bentik. Komposisi sedimen didominasi oleh komponen bioklastik, yang terdiri atas koral dan moluska sebagai dua komponen tertinggi.

Keywords

geomorfologi, bentik habitat, sedimen permukaan, konservasi, Pulau Biawak

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