ABSTRACT: The collapsible trap is a common trap used to catch mud crabs in Indonesia. The trap entrance (funnel) design has a significant effect to fishing efficiency. The research aimed to determine an optimal entrance design of collapsible trap to catch mud crab based on inclination angle and mesh size (net) pattern. The laboratory experiment was conducted to collect data of mud crab creeping speed at inclination angle of 20°, 30°, 40°, using box and diamond net surface. The Kruskal Wallis analysis was used to define the effect of inclination angle and net shape. Mud crabs can cross a box and diamond funnel easier in angle 20° than in angle 40°. The crawling speed at box and diamond shape varied from 1.88 – 7.50 cm/s and 1.88 – 5.00 cm/s respectively. The highest speed was found at diamond shape in 20° inclination angle and the lowest speed was at 40°. The different angles and net shapes have a significant effect to crawling speed of mud crabs, and the optimal design was funnel with 30° inclination angle using box net pattern.
Penulis: Adi Susanto, Ririn Irnawati, Angga Sasmita
Kode Jurnal: jppertaniandd140739