ANALYSIS OF THE EFFECT OF HALOGEN LAMP REFLECTOR SHAPES ON LIGHT ILLUMINATION AND CATCH YIELD OF SCOOP NET FISHERIES IN CILACAP WATERS

Abstract

Scoop net nets or Caduk nets are small pelagic fishing devices operated in the waters of Cilacap. The net scoop net is operated with a halogen lamp tool. To focus on the light, fishermen use a reflector (container). The shape and size of the refractor used by fishermen varies, there are two forms of reflectors that are often used by fishermen, namely cone and concave reflectors. The aim of the study was to determine the effect of using cone and concave reflectors on catches. The method used is descriptive method. While the method of data collection is observation, documentation and interviews with related parties. The research was condusted on August 2023.  The results showed that the light illumination values in dim, standard and maximum conditions in cone reflectors were 20 lux, 4,970 lux and 6,970 lux, respectively. Whereas the concave reflector is 13 lux, 3,470 lux and 5,170 lux. The catch composition for 15 trips, namely from the types of white anchovy (Stolephorus indicus), anchovy rice (Stolephorus comersonni), lemuru (Sardinella lemuru), tembang (Sardinella fimbriata). The catch weight is the use of a cone reflector, namely 1,360 Kg teri putih, teri nasi 197 Kg, lemuru 198 Kg, and tembang 981 Kg. As for the concave reflector, the catch is obtained, 1,270 Kg white teri, 48 Kg teri nasi, 376 Kg Lemuru, and 805 Kg tembang. Based on statistical tests obtained that the use of different forms of reflector does not affect the acquisition of catches during the capture process. The significance value is 0.768 > 0.05, so H0 is accepted. This shows that there is no difference in the use of cone reflectors and concave to the catch on the scoop net.