The length–weight relationships and clasper maturity of two shark (Carcharhinus sorrah, Carcharhinus falciformis) of landed in Prigi Coastal fishing Port Trenggalek East Jawa

Sharks are often found in all the waters scattered various regions of world. On other hand, shark fisheries have declined globally due to fishing as well demand is very high. The length-frequency distribution for Carcharhinus sorrah distributed between 33-131 cm falciformis 51-161 cm. length-weight relationship allometric negative, while on positive. maturity level august Full Classification (FC) category,5.6% Non Calcification (NFC) category 7.4% and Non-Calcification (NC) 87.0%, September category, 48.7% 17.9 % 33.3 %, October 72,7 6.1 21.2 %. clampers FC (Full Classification) conditions occurs Males most common. sex ratio spot-tail (Carcharhinus sorrah) was dominated by male fish, with class being non-calcification (NC). whereas silky sharks females, january many Immature / months march Ripe Full-Calcification (FC). This study provides information about clasper matured two species whose results will be used stock assessment sustainable management sharks.