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应用生态学报 ›› 1993, Vol. 4 ›› Issue (1): 74-77.

• 研究论文 • 上一篇    下一篇

渤海南部牙鲆的食性及摄食的季节性变化

窦硕增, 杨纪明   

  1. 中国科学院海洋研究所, 青岛 266071
  • 收稿日期:1991-07-16 修回日期:1992-07-14 出版日期:1993-01-25 发布日期:1993-01-25

Feeding habit and seasonal variation of ingesting of left-eyed flounder in south Bohai Sea

Dou Shuozeng, Yang Jiming   

  1. Institute of Oceanology, Academia Sinica, Qingdao 266071
  • Received:1991-07-16 Revised:1992-07-14 Online:1993-01-25 Published:1993-01-25

摘要: 1051尾渤海南部牙鲆的胃含物分析表明,渤海南部牙鲆为捕食性(游泳生物食性)鱼类,其食物成分有30余种,以底栖虾类中的口虾蛄、鲜明鼓虾、日本鼓虾、脊尾褐虾,软体动物的日本枪乌贼及鱼类中的斑(鱼祭)、鳀鱼、黄鲫、六丝矛尾虾虎鱼及焦氏舌鳎等动物为主要食物.牙鲆除冬季外,其余时间均强烈摄食,而且其摄食的季节性变化明显:春季以鱼类(重量占80.9%)及甲壳类(18.6%)为主要食物;夏季以鱼类(83.5%)及软体动物类(13.1%)为主要食物;秋季主要摄食鱼类(87.9%);冬季则主要摄食鱼类(73.2%)及甲壳类(19.7%).

关键词: 食性, 摄食季节性变化, 牙鲆, 渤海南部

Abstract: Food compositions in stomachs of adult left-eyed flounder of 150—245 mm length collected from south Bohai Sea from July 1982 to July 1983 are analysed in this paper. The results show that lefteyed flounder (Paralichthys olivaceus) is a predatory fish. There are more than30 species of animals ingested by it. It feeds chiefly on fishes (e. g. Clupanodon puncatatus, Engraulis japonicus, Setipinna taty, Chaeturichthys hexanema and Cynoglossus joyneri), crustaceans (e. g. Oratosquilla oratoria, Alpheus distinguendus, Alpheus japonicus and Crangon affinis) and molluscs such as Loligo japonica. Fishes (80.9%) and crustaceans (18.6%) are ingested in spring, fishes (83.5%) and mollusca (13.1%) in summer,fishes (87.9%) in autumn and fishes (73.2%) and crustaceans (19.7%) in winter.

Key words: Feeding habit, Ingestion, Seasonal variation, Paralichthys olivaceus, South Bohai Sea