HUBUNGAN KEPADATAN SIPUT (Drupella) DENGAN KONDISI EKOSISTEM TERUMBU KARANG DI PERAIRAN PULAU SEMUJUR PROVINSI KEPULAUAN BANGKA BELITUNG: THE RELATIONSHIP BETWEEN DRUPELLA SNAIL DENSITY AND THE CONDITION OF THE CORAL REEF ECOSYSTEM IN THE WATERS OF SEMUJUR ISLAND, PROVINCE OF BANGKA BELITUNG ISLANDS. AKU [Internet]. 2019 Oct. 29 [cited 2026 Jun. 17];13(2):152-61. Available from: https://journal.ubb.ac.id/index.php/akuatik/article/view/1498