<![CDATA[Ikan Madidihang (Thunnus albacares Bobbaterre, 1788) merupakan salah satu komoditaspenting bagi industri perikanan di Indonesia dimana hasil tangkapannya merupakan yang tertinggi dibandingkan jenis tuna lainnya. Saat ini, kondisi stok madidihang berada dalam kondisi yang baik. Namun, untuk menjaga kelangsungan pemantaatan stok ikan tuna, diperlukan upaya pengelolaan sumber daya tuna. Penelitian ini bertujuan untuk mengetahui distribusi laju tangkap madidihang di Samudera Hindia Bagian Timur. Pengumpulan data dilakukan oleh pemantau ilmiah pada kapal rawai tuna komersial yang berbasis di Benoa, Pelabuhanratu dan Bungus dari Agustus 2005 sampai Desember 2013; serta program monitoring pendaratan tuna yang berbasis di Benoa tahun 2010-2013. Hasil penelitian menunjukkan bahwa laju pancing bervariasi secara bulanan dan tahunan. Rata-rata bulanan laju pancing tertinggi terjadi pada Mei (0,17 ekor/100 pancing) dan terendah pada Februari (0,01 ekor/100 pancing), sedangkan rata-rata laju pancing tahunan tertinggi pada 2006 (0,11 ekor/100 pancing) dan terendah pada 2011 (0,06 ekor/100 pancing). Rata-rata laju pancing tahunan cenderung mengalami penurunan sebesar 29,48%/ tahun. Ikan madidihang tertangkap oleh rawai tuna Indonesia tersebar dari 0°-34° LS dan 76°-134° BT. Sebaran spasial laju pancing tertinggi berada di sekitar Kepulauan Mentawai dan selatan Jawa Timur hingga Nusa Tenggara.Yellowfin tuna (Thunnus albacares Bobbaterre, 1788) is one of the important commodity for the fishing industry in Indonesia because it has the highest catches compared with other tunas. Nowadays, the yellowfin stock is currently in good condition (not overfished and not subject to overfishing). However, management measure was required to support sustainability of tuna fishery. This study aims to determine the hook rate distribution of yellowfin tuna in the Eastern Indian Ocean. Data was obtained by scientific observers on commercial tuna longline vessels, mainly based in Benoa, Palabuhan Ratu and Bungus Fihing Port, from August 2005 to November 2013; also monitoring program of tuna catches mainly landed in Benoa during 2010 to 2013. The results showed that the hook rate of yellowfin tuna was varied monthly and yearly. The highest of monthly average CPUE occurred in May (0,17 fish/100 hooks) and the lowest were in February (0,01 fish/100 hooks), while the highest annually CPUE also occurred in 2006 (0,11 fish/100 hooks) and the lowest in 2011 (0,06 fish/100 hooks). CPUE also has declining with 29,48%/year. Distribution of yellowfin tuna caught by Indonesia tuna longline spreads from 0°-34° S dan 76°-134° E. The highest CPUE was around Mentawai islands and also in south coast of East Java to Nusa Tenggara.]]>
