巢湖翹嘴和湖魴的食性分析

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中圖分類號(hào)：S9 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1004-6755（2025）05—0013-0

Abstract：The dietary shifts of fish are an important indicator reflecting ecosystem impacts. This study focused on two dominant species in Lake Chao，the topmouth culter （Culter alburnus） and the Taihu lake anchovy （Coilia nasus taihuensis），systematically analyzing their food composition and seasonal variation patterns. By examining gut contents and combining them with data on prey abundance in the water，the study revealed the dietary variation trends and ecological adaptation mechanisms of these two fish species.The results showed significant seasonal differences in their diets. Culter alburnus primarily preyed on fish year-round，with the broadest diet in summer，while the Coilia nasus taihuensis exhibited distinct seasonal dietary shifts，including cannibalism during summer.

Key words：Culter alburnus ;Coilia nasus taihuensis ； food composition

巢湖作為中國(guó)內(nèi)陸的典型淡水湖，擁有豐富的水生生物資源和多樣的生態(tài)系統(tǒng)結(jié)構(gòu)，是研究水域生物相互關(guān)系的重要場(chǎng)所[1]。（剩余4392字）