Adi Susanto

PENGGUNAAN BENTUK DAN POSISI CELAH PELOLOSAN PADA BUBU LIPAT KEPITING BAKAU (Shape and Position Escape Gap Application of Collapsible Mud Crab Trap)

The use of capture technology is not environmentally friendly and low public awareness to restore the Mud crab (Scylla sp.) that still poses a threat to small crab in natural resource conservation. The use of a gap for passage of the mud crab trap folding is one of the fishing technology innovations that will increase the size of crabs caught making it more environmentally friendly. This study aims to determine the size, shape and position of mounting an effective escape gap on collapsible traps for mud crabs that have not passed a decent catch. The method used was a laboratory experiment conducted on Fisheries Department UNTIRTA using escape gap is 2 boxes (50x50) mm and rectangular (60x36) mm mounted on the top and bottom position of the mouth traps. The results showed that the folding rectangular traps more effective mud crab that has not passed a decent escape capture by the percentage reaches 65%. Position mounting a more effective escape gap is at the bottom position of the mouth traps with crab escape frequency percentage of 54%.

STABILITAS STATIS KAPAL STATIC GEAR DI PALABUHANRATU (STUDI KASUS KM PSP 01)

This paper discusses on the static stability performance of a fishing vessel operated static fishing gear. A fishing boat named as KM PSP 01 was chosen as an object of this research. The objectives of this research were to analyze the static stability performance and work comfortability aboard the vessel. The result showed that KM PSP 01 was good enough for operating static fishing gear, the static stability of the boat is considered to be good with enough righting arm to upright the boat after roll to certain maximum angle. Hull of the boat considered as slim. Short rolling period i.e. 3.467 sec. considered as not so comfortable for working on deck but still safe in fishing operation.