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分析了罗源湾五种石首鱼类的食性，结果表明：它们的食物组成比较相似，但主要食物种类各有不同，棘头梅童鱼（Ｃｏｌｉｃｈｔｈｙｓｌｕｃｉｄｕｓ（Ｒｉｃｈａｒｄｓｏｎ））主要食物为磷虾和桡足类；条纹叫姑鱼（Ｊｏｈｎｉｕｓｆａｓｃｉａｔｕｓ（Ｃｈｕ，ＬｏｅｔＷｕ））的为毛虾和磷虾；叫姑鱼（Ｊ，ｂｅｌｅｎｇｅｒｉｉ（ＣｕｖｉｅｒｅｔＶａｌｅｎｃｉｅｎｎｅｓ））的为多毛类；大黄鱼（Ｐｓｅｕｄｏｓｃｉａｅｎａｃｒｏｃｅａ（Ｒｉｃｈａｒｄｓｏｎ））的为毛虾和鱼类；白姑鱼（Ａｒｇｙｒｏｓｏｍｕｓａｒｇｅｎｔａｔｕｓ（Ｈｏｕｔｔｕｙｎ））的为长臂虾和鱼类，五种石首鱼类的胃饱满指数除白姑鱼为６５．７６％外，其余都在４．５８‰～１６．１２‰之间，摄食强度季节变化比较明显。五种鱼类都属低级肉食性鱼类，营养级为２．３～２．６。
The results showed that the food compositions were similar, but the main types of food were different. The main food of Colichthyslucidus (Richardson) was krill and radial Foot-like; stripes called fish (Johniusfasciatus (Chu, LoetWu)) for the shrimp and krill; called the fish (J, belengerii (Cuvieret Valenciennes)) for the polychaete; large yellow croaker (Pseudosciaenacrocea (Richardson) Shrimp and fish; Porphyra (Argyrosomusargentatus (Houttuyn)) for the long-arm shrimp and fish, five kinds of stone head fish stomach full index except Pokey was 65.76%, the rest are in 4.58 ‰ ~ 16.12 ‰, the seasonal change of feeding intensity is more obvious. Five kinds of fish are low-grade carnivorous fish, trophic level 2.3 ~ 2.6.