PENGGUNAAN LAMP U MERKU RV DALAM PERIKANAN MINI PURSE SEINE DI JEPARA

Abstract

Lig& is one of important factor that can make fishing activity with mini purse seine gear that was operated in it' le night successfidl. The function of light to make artificial fishing ground, if the fish have no united in catchable area, or in the outside of catcable ability of net, so we must try to make fish on united in the catchable area. One of the effort to make catchable area or good fishing ground is making the artificial fishing ground. The objective of experiment are : (1) learn development by using mercury lamp on mini purse seine in Jepara (2) analyze yield of mini purse seine that using the different quantity of lamp (3) learn the fish behaviour to the light by using fish finder. The experiment have done in Jepara, Coural Java for eight 'month. The activity of experiment are : (I) survey location in make experiment plan (2) tried to catch fish by following mini purse seine that operated in many fishing ground in Jepara, Central Java. The result analyze of yield with mini purse seine by using the different quantity lamp that operated in Jepara Central Java, are show : (1) using the different quantity of mercury lamp (8, 10, and 12 lamp) in mini purse seine wasn't give the real influence about the yield. (2) spreading of illumination mercury lamp with the other mercury lamp showed the little different of penetration ability, with 8 lamp the light can reach 26 depth meter, 10 lamp the light can reach 35 depth meter, 12 lamp the light can reach 36 depth meter, (3) the observation with Fish Finder about biomass offish showed the biomass offish will be rise with the time of light time.