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All Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Ralph Thomas Mahulette
Pusat Penelitian Pengelolaan Perikanan dan Konservasi Sumber Daya Ikan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Ukuran ikan tuna matabesar (Thunnus obesus) yang ditangkap dengan menggunakan pancing ulur (hand line) di perairan Maluku [Size of bigeye tuna (Thunnus obesus) which are caught by hand lines in Maluku waters] Agustinus Anung Widodo; Ralph Thomas Mahulette
Jurnal Iktiologi Indonesia Vol 11 No 1 (2011): Juni 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i1.148

Abstract

In order to obtain data and information about the size of bigeye tuna ( Thunnus obesus) which caught by hand line in Malu-ku waters, a research was carried out in some coastal villages in Ambon region i.e. Hutumury, Nusalaut, Seri, Latuhalat, Ambalau and Kelang. Random sampling was done once a week in July to December 2009 by trained enumerators. Aspect observed was fish forked length (FL). The results showed that FL bigeye tunas which caught by tuna hand line in Maluku waters were varied during the study. Hand line was not suited to exploit bigeye tunas in August, September, October and November because many juvenile of bigeye tuna was caught in those months (Lc > Lm). Therefore, hand line was appro-priate for bigeye tunas on July and December. AbstrakDalam rangka memperoleh data dan informasi mengenai ukuran ikan tuna matabesar (Thunnus obesus) yang tertangkap dengan pancing ulur di perairan Laut Maluku, maka telah dilakukan penelitian di desa-desa pusat pendaratan tuna di wilayah Ambon yaitu Desa Hutumury, Nusalaut, Seri, Latuhalat, Ambalau, dan Kelang. Pengambilan contoh dilakukan secara acak satu kali setiap minggu pada bulan Juli-Desember 2009. Penelitian dilakukan dengan bantuan enumerator yang terlatih. Aspek yang diamati adalah ukuran panjang cagak (FL). Hasil penelitian menunjukkan bahwa FL ikan tuna matabesar yang tertangkap pancing ulur di perairan Maluku pada bulan Juli-Desember 2009 bervariasi. Pancing ulur tidak cocok untuk mengeksploitasi ikan tuna matabesar pada Agustus, September, Oktober, dan November karena pada bulan tersebut pancing ulur menangkap tuna matabesar yang masih muda (Lc>Lm). Alat tangkap pancing ulur efektif untuk menangkap ikan tuna mata besar pada bulan Juli dan Desember. 
Co-Authors Agustinus Anung Widodo