Kecamatan bunyu di kabupaten bulungan memiliki karakter pulau kecil memiliki potensi sumberdaya ikan yang berlimpah. penelitian ini menerangkan serta menguraikan pengenalan jenis, ukuran panjang dan berat persentase komposisi jenis dan kategori jenis tangkapan bubu dasar di perairan bunyu. penelitian menggunakan metode survey dan deskriptif pendekatan kualitatif dan kuantitatif. komposisi dan kategori tangkapan pada alat tangkap bubu dasar dengan tangkapan utama (main catch) yaitu kerapu (epinephelus coioides), kakap tompel (lutjanus johnii), kakap merah (lutjanus bohar), dan kakap merah bambangan (lutjanus erythropterus) dengan persentase 92.5 %. hasil tangkapan sampingan (bycatch) 7.5% dan hasil tangkapan buangan (discard) 0%. total sampling 8 kali menggunakan alat tangkap bubu dasar. hasil tangkapan utama yang tertangkap alat tangkap bubu dasar memiliki pola / sifat pertumbuhan isometrik pada jenis ikan kerapu (epinephelus coioides) dan ikan kakap tompel (lutjanus johnii). sifat pertumbuhan allometrik negative pada ikan kakap merah (lutjanus bohar) dan kakap merah bambangan (lutjanus erythropterus). kata kunci: allometrik, bubu dasar, isometric, perairan bunyu

Bunyu sub-district in bulongan regency is characterized as a small island with abundant potential fish resources. this study aims to describe the species recognition, length and weight percentages of fish species composition and categories of bottom trawl catches in bunyu waters. survey and descriptive qualitative and quantitative approaches were the methods in this study. total sampling was 8 times using bottom trawl fishing gear. the results showed that the composition and category of catches in bottom trawl fishing gear with main catches including grouper (pinephelus colider), golden snapper (lajanj), the two-spot red snapper (larjun kar), and the crimson snapper (laj erythropters) with a percentage of 92.5% bycatch was 7.5% and docard was 0% the main catches caught by bottom trawl gear had isometric growth patterns? properties in orouper (epinephelo codes), and golden snapper (latjanes joli) negative allometric growth characteristics in the two-spot red snapper uajama bohar), and the crimson snapper (lagja erythroptera).. keywords: allometric, bottom trawl, isometric, bunyu waters