The present study had investigated different aspects of feeding biology of Grammoplites suppositus. The G. suppositus was found to feed on crabs (26.85 %), zooplanktons (14.02 %), shrimps (18.78 %), fishes (10.83 %), gastropod (5.14 %), cephalopods (3.24 %) and miscellaneous (digested matter) food items (21.2 %). The number and occurrence of food items vary in relation to sex and size of investigated species, although the variation was insignificant (P > 0.05). However the changing environmental conditions during monsoon, pre and post-monsoon season significantly (P < 0.05) influence the feeding intensity of the observed fish. The highest percentages of empty stomach were recorded during SW monsoon and post-monsoon which may be due to increased spawning activity. The GaSI ranged between 2.48 to 7.63 whereas, HSI ranged between 1.06 to 3.98. The cannibalism was only observed during monsoon season. The females feed less actively and showed highest percentage of cannibalism than males.

中文翻译：

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革兰氏栓的饮食组成和摄食策略的季节性变化（Troschel，1840）（家庭：侧柏科）与其性别和大小有关

本研究调查了革兰栓的摄食生物学的不同方面。在G. suppositus发现饲料上蟹（26.85％），浮游动物（14.02％），虾（18.78％），鱼类（10.83％），腹足（5.14％），头足类（3.24％）和杂项（消化物）食品（21.2％）。食品的数量和发生率与被调查物种的性别和大小有关，尽管差异不显着（P > 0.05）。然而，在季风季节，季风前后，季风环境变化显着（P<0.05）影响所观察鱼的摄食强度。西南季风和季风后记录的空腹率最高，这可能是由于产卵活动增加所致。GaSI介于2.48至7.63之间，而HSI介于1.06至3.98之间。同类相食仅在季风季节出现。雌性的觅食活动较不活跃，并且相较于雄性，食人率最高。