Mapping of Sapuka Islands water areas, South Sulawesi, Indonesia using Marxan technology for coral reef conservation

JAYA JAYA (Department of Aquaculture, Faculty of Fisheries, Universitas Cokroaminoto Makassar. Jl. Perintis Kemerdekaan Km. 11, Tamalanrea, Makassar 90245, South Sulawesi, Indonesia)
ROSWIYANTI ROSWIYANTI (Department of Management, Faculty of Social Sciences, Economics and Humanities, Universitas Cokroaminoto Makassar. Jl. Perintis Kemerdekaan Km. 11, Tamalanrea, Makassar 90245, South Sulawesi, Indonesia)
ABDUL RAUF (Department for Marine Sciences, Faculty of Fisheries and Marine Science, Universitas Muslim Indonesia. Jl. Urip Sumiharjo No. 225, Makassar 90231, South Sulawesi, Indonesia)
ANDI NUR APUNG MASSISENG (Department of Fishery Agrobusiness, Faculty of Fisheries, Universitas Cokroaminoto Makassar. Jl. Perintis Kemerdekaan Km. 11, Tamalanrea, Makassar 90245, South Sulawesi, Indonesia)
LUKMAN DARIS (Department of Fishery Agrobusiness, Faculty of Fisheries, Universitas Cokroaminoto Makassar. Jl. Perintis Kemerdekaan Km. 11, Tamalanrea, Makassar 90245, South Sulawesi, Indonesia)
ST ZAENAB (Department of Aquaculture, Faculty of Fisheries, Universitas Cokroaminoto Makassar. Jl. Perintis Kemerdekaan Km. 11, Tamalanrea, Makassar 90245, South Sulawesi, Indonesia)

Biodiversitas Journal of Biological Diversity
Vol. 25 No. 12 (2024)

Abstract. Yaya J, Roswiyanti R, Rauf A, Massiseng ANA, Daris L, Zaenab S. 2024. Mapping of Sapuka Islands water areas, South Sulawesi, Indonesia using Marxan technology for coral reef conservation. Biodiversitas 25: 5012-5023. Mapping coastal and marine conservation areas is essential for supporting sustainable resource management and promoting designated utilization practices. This study aimed to assess the condition of coral reefs and develop a map of conservation zones in the Sapuka Islands' waters, South Sulawesi, Indonesia. The study's novelty lies in providing an updated status of coral reef conditions and identifying optimal zones for conservation within the Sapuka Islands. Data were collected through direct observation, Focus Group Discussions (FGD), social mapping, GPS-based coordinate tracking, underwater photo transects, and the identification of planning units, conservation features, and cost metrics. Findings indicated a decline in coral reef area over the past three years, with coverage reducing from 6,094.67 ha in 2022 to 5,771.67 ha in 2023 and further to 5,559.67 ha in 2024. Several coral genera were identified, including Euphyllia, Acropora, Montipora, Pocillopora, Giniastrea, Sinularia, and Porites. The Marxan analysis identified a core conservation zone encompassing 6,950 ha, distributed across the waters of Sapuka Caddi Island (6,575 ha) and Pelokang Island (375 ha).