Journal of Marine Biology

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Investigation of Diet biology of Nemipterus japonicas in Persin Gulf waters (Hormozghan Beaches) was performed since November 2010 until July 2011. In this Investigation biometry and feeding of 160fishes were studied. Stomach Fullness of Index (FI), Vacuity Index (VI), Food Preference Index (FP), Gastro Somatic Index (GSI), Condition Factor (CF) was calculated according to the computer software Excel and for statistical Ievels, SPSS software was used. In this study the average Length for this species was 208.54 ml and weight average was 159.20 gr. It was observed that females were greedier than males. Study of the presence of prey abundance index (J) in the stomach of N EMIPTERUS JAPONICUS, ABUNDANCE INDEX FOR Squilla mantis (Stomatopoda) was 60.67% that as the main food of fish is considered. Abundance index were 41.57% Crabs, 28.08% Shrimps, 26.96% Fishes, 14.60% Amphipoda, 13.48% Mollusca, 12.35% Brittle Stars and 11.23% Nematode that they are side food for this species. Other food groups like Copepod with abundance index 4.49%, fish egg 4.49%, Euphausiacea 1.12% ND Polychaete 1.12% were random food for species.

Keywords: Diet, Nemipterus japonicas, Persian Gulf

     

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