Study diet composition of Barracuda (Sphyraena putnamae) in Sistan and Baluchestan waters (Oman Sea)

This study has been conducted during April 2010 to March 2011 in Sistan and Baluchestan waters to evaluate Sphyraena putnamae’s diet. 165 specimens were biometric, dissection and biological study (diet). Diet studied of this fish showed by having average RLG of 0.43 0.003 is highly carnivor and more than 96% of their stomachs were filled with fishes (FP=96%). During study period, food preferences index (FP) was high for Sardinella longiceps (23.8%), Rastrelliger kanagurta (11.1%) and Stolephorus indicus (7.9%) but was low for Sphyraena sp., Saurida sp. and Uroteuthis davancel (1.6% each). CV average for whole period was 71.52% and that showed this fish is abstemious but according to fishing method, CV index in September which was (32%) should be considered as correct index for this type which showed this fish is gluttonous. Average fullness index (FI) was 28.48% in whole period.