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Pengelolaan perikanan tangkap yang lestari membutuhkan informasi potensi dan pola penyebaran sumber daya ikan yang dimanfaatkan. Penelitian ini bertujuan untuk mengetahui distribusi dan potensi sumber daya ikan pelagis di WPP NRI 573 (perairan Samudera Hindia) dengan metode akustik. Hasil penelitian menunjukan, penyebaran densitas cukup tinggi untuk ikan pelagis ditemukan di perairan selatan Pangandaran hingga wilayah Jogjakarta. Sumber daya ikan pelagis kecil yang terdeteksi didominasi oleh ukuran ikan dengan kisaran panjang antara 25-28 cm dan ikan pelagis besar di dominasi oleh ukuran ikan 28-31 cm. Nilai rata-rata kepadatan stok untuk ikan pelagis kecil 0,041 ton/km2 dan ikan pelagis besar sebesar 0,14 ton/ km2. Potensi lestari ikan pelagis kecil sebesar 292.092 ton/tahun dan ikan pelagis besar sebesar 505.941 ton/tahun. Nilai tersebut dapat dijadikan dasar dalam upaya pengelolaan dan pemanfaatan perikanan pelagis. The sustainable management is needed information on the stock and distribution pattern of fish.This study aims to determine distribution and potential of fish resources especially for pelagic species in FMA 573 (Indian Ocean) by using acoustic method. Result of research indicated that, high density for pelagic fish found in south Pangandaran to Jogjakarta. The results obtained also that, the detected small pelagic fish were dominated by the fish size ranged between 25-28 cm and large pelagic fish was dominated by fish size of 28-31cm.The average of the stock density for small pelagic fish was 0,041 ton/km2 and large pelagic fish of 0.14 ton/km2.The sustainable potential of the small pelagic fish amounted to 292.092 ton/year and the large pelagic fish amounted to 505.941 ton/year. These values can be used as the basic management and utilization of pelagic fisheries in the waters region.

DISTRIBUSI DAN POTENSI SUMBER DAYA IKAN PELAGIS DI WILAYAH PENGELOLAAN PERIKANAN NEGARA REPUBLIK INDONESIA 573 (WPP NRI 573) SAMUDERA HINDIA