Author(s): Ida Ayu Lochana Dewi and Shobikhuliatul Jannah Juanda

Abstract: Artificial baits are necessary to get an ample amount of catches. Fishing rod requires a bait that is attractive to fish so they can be caught easily. Other than colors, fish are also attracted to light that comes from planktons or other fish (bioluminescence), and tend to move toward the light sources (positive phototaxis). Based on this phenomenon, a research of phosphorization of artificial baits in relation to the catch numbers has been conducted. Phosphor is a substance that can absorb and reflect light, so it’s an ideal substance to be used for layering of fish baits. This research has been conducted in Marine Nature Park of Kupang Bay, East Nusa Tenggara from April to June 2021. The method being used is experimental fishing, with increasing amount of phosphor being used in every 60 grams of bait. There are four levels of treatment; without phosphor, 10 grams, 30 grams, and 50 grams of phosphor. The amount of fishing trips being repeated are 16. Data analysis is using analysis of variance with further testing of mean for each variable. Result of the research shows that there are nine type of caught fish, which are Sphyraena sp, Lutjau ruselli, Caranx sexfasciatus, Plectropomus leopardus, Rastrelliger sp., Trichiurus lepturus, Lutjanus lutjanus, Lutjanus jocu, and Epinephelus coioides. Based on the result of analysis of variance, increasing amount of phosphor contributed significantly to the number of catches (F-test 4.91 > F-table 1%). From further testing, treatment 2, 3, and 4 are significantly different than treatment 1 (without phosphor), meanwhile each treatment with increasing amount of phosphor shows least significant difference in result.

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