MOON PHASE EFFECT OF LOBSTER (Panulirus homarus) CATCHES IN PALABUHANRATU GULF, SUKABUMI DISTRICT
Sukabumi distric is one of the potensial areas lobster producer in Indonesia, particulary in the gulf region Palabuhanratu, one species of lobster is Panulirus homarus usually called in bahasa Indonesia is Lobster Hijau Pasir. So many research on the another places is the moon phases give influence to catch of lobster. This study is want to observe, the influence of the moon phase to the lobster catches especially for P. homarus species in the Pelabuhanratu district. And also the influence the moon phase to the size of P. homarus lobster. Data is collected from the collecting lobster catches from August to December 2015. The moon phase are divides in 4 phases, as the semi-bright moon phase (phase 1), full moon (phase 2), semi dark (phase 3), and full dark (phase 4), the phases of moon is take from List of Nautical Almanac. The size of lobster is divided in to 3 sizes, as KK (0.30-0.99 grs/pc), SPK (100-200 grs/pc), and SPB (200 grs Up/pc). The results of this study is showed the catch of Panulirus homarus lobster in Pelabuhanratu district, the moon phase was not give different influence significantly, it’s shown from calculations of the statistic P= 0.8917 (P>0.05). The Lobster caught in all the phases of the moon, and the biggest one in the semi-bright moon phase (phase 1) as big as 41.90±11.7 (SE) kilograms. If base on the sizes, that many Lobster caught in KK (0.30-0.99 grs/pc) and SPK (100-200 grs/pc). If the accordance of calculation of catch trend, has started an increase of catches in September. This conditions is in conjunction with the start of the rainy season/west season. The conclusions of this study, that the moon phase is not give influence to the total catches of lobster P. homarus, but it is predicted there are other factors is influence it is a local environmental factors that have a major influence on the total catches of lobster P. homarus.