ABSTRAKEkosistem mangrove merupakan salah satu ekosistem utama di wilayah pesisir yang sangat produktif namun sangat rentan terhadap perubahan lingkungan. Pengelolaan ekosistem mengrove harus memperhatikan keterpaduan secara ekologis, ekonomis dan sosial-budaya masyarakat agar pengelolaan secara optimal dan lestari tercapai. Potensi sumber daya ekosistem mangrove di Kawasan Teluk Jailolo cukup besar tetapi kondisi hutan mangrove belum terdata optimal. Tujuan dari penelitian ini untuk mengetahui sebaran kondisi ekosistem hutan mangrove di kawasan Teluk Jailolo, dengan harapan agar pemanfaatan potensi ekosistem mangrove dapat meningkatkan kesejahteraan masyarakat. Metode yang digunakan dengan pendekatan teknologi penginderaan jauh dalam memperoleh data dan informasi spasial tentang kondisi ekosistem mangrove dan pengukuran langsung (survey lapangan) untuk memperoleh data sebaran dan kondisi ekosistem mangrove di kawasan pesisir Teluk Jailolo. Berdasarkan hasil analisis data Citra Alos Avnir-2 bahwa luas mangrove yang terdapat di Teluk Jailolo adalah 393.77 ha, sebagian besar menyebar disekitar garis pantai bagian Timur Teluk Jailolo, dengan kategori tingkat kerapatan sangat jarang hingga lebat. Berdasarkan analisis NDVI diketahui bahwa luas mangrove untuk kategori sangat jarang 20.18 ha, jarang 91.97 ha, sedang 157.83 ha, dan lebat 123.79 ha Kata kunci : Citra Alos Avnir-2, Ekosistem Mangrove, Teluk Jailolo. ABSTRACTMangrove swamp is one of the productive and essential part in the coastal area. However, it is high risk of the environmental pressure. Thus, the management aspect should be concerned in term of the integrality among ecology, economic, and socio-culture of the community so that optimality of the renewable management can be realized. Despite of large potential of this ecosystem resource, it is lack of the data concerning the ecological

The objective of the present study was to examine the ecological indices and mapping the mangrove ecosystem in the coastal region of Maitara Island, North Moluccas Province. The study was conducted during 2015 at three stations. The results showed that 4 species of mangrove belong to 3 families were recorded during the study. The total density of stations was 215.78 tree/hectare, the frequency was 722.22 tree/hectare, the percent cover was 189.29% and the significant value was 300 in every station. Rhizopora apicullata, Avicennia alba, Sonneratia alba have the highest density and frequency, while the lowest density and frequency were Sonneratia caseolaris. Sonneratia alba, S. caseolaris, Avicennia alba have the highest percent cover. Overall, the diversity of mangroves is minor. The characterization of zonation showed that Rhizhopora sp. is a leading constituent of mangrove ecosystem from coast line to the hinterland of Maitara Island.