PENGUATAN CAHAYA PADA BAGAN MENGGUNAKAN REFLEKTOR KERUCUT SEBAGAI UPAYA MENINGKATKAN HASIL TANGKAPAN CUMI-CUMI (Light Strengthening on Lift Net with Conical Reflectors to Squid Catch Improvement)

ABSTRACT Study of light strengthening on lift net with conical reflectors was conducted in Kao Bay waters. Three units of lift net were operated 14 nights at the full moon condition. Every lift nets were completed with three different kind of lamp cover, called tudung, reflector αr23,3o and αr32,6o. Fishing operation time of lift net were divided into two intervals of time i.e 20.00-01.00 and 01.00-05.00 WIT (East Indonesian Timezone). Total yield of lift net with reflector αr23,3o was 5.774 kg (41,45%), while that of the lift net with reflector αr 32,6o was 4.977 kg (35,72%), and that of total yield of the lift net with tudung was 3.180 kg (22,83 %). Fishing operation time of lift net at 01.00-05.00 WIT (East Indonesian Timezone) produced 12.661 kg (91 %) weight of total catch, higher than fishing operation of lift net at 20.00-01.00 am that produced 1.270 kg (9 %) weight of total catch. However, statistical analysis concluded that design of the reflector did not significantly affect the catch per trip (Pvalue > 0,05) while fishing time significantly affected the catch per trip (Pvalue < 0,05). Key words: Kao Bay, light, reflector, squid ------- ABSTRAK Penelitian tentang pengaruh penguatan cahaya pada bagan dengan reflektor kerucut terhadap hasil tangkapan cumi-cumi dilakukan di perairan Teluk Kao. Tiga unit bagan dioperasikan selama 14 malam pada saat kondisi terang bulan. Masing-masing bagan dilengkapi penutup lampu berbeda, yaitu tudung standar, reflektor kerucut αr23,3o dan αr32,6o. Setiap pengoperasian bagan dibagi dalam dua interval waktu, yaitu antara 20.00-01.00 WIT dan 01.00-05.00 WIT. Hasil penelitian menunjukan bahwa penggunaan reflektor αr23,3o memberikan hasil tangkapan cumi-cumi paling banyak dengan bobot total 5.774 kg (41,45%), sedangkan bagan dengan reflektor αr32,6o seberat 4.977 kg (35,72%), dan bagan dengan tudung 3.180 kg (22,83%). Pengoperasian bagan pada interval waktu penangkapan 01.00-05.00 WIT menghasilkan bobot tangkapan 12.661 kg (91%), atau lebih tinggi dari interval waktu penangkapan 20.00-01.00 WIT (1.270 kg) atau 9% dari total hasil tangkapan. Namun hasil uji statistik menyimpulkan bahwa faktor tudung tidak berpengaruh nyata terhadap tangkapan cumi-cumi per trip sedangkan faktor interval waktu penangkapan berpengaruh nyata (Pvalue = 0,05). Kata kunci: Teluk Kao, cahaya, reflektor, cumi-cumi