杨代勤, 陈芳, 李道霞, 刘百韬. 黄鳝食性的初步研究[J]. 水生生物学报, 1997, 21(1): 24-30.
引用本文: 杨代勤, 陈芳, 李道霞, 刘百韬. 黄鳝食性的初步研究[J]. 水生生物学报, 1997, 21(1): 24-30.
Yang Daiqin, Chen Fang, Li Daokia, Liu Baitao. PRELIMINARY STUDY ON THE FOOD COMPOSITION OF MUD EEL, MONOPTERUS ALBUS[J]. ACTA HYDROBIOLOGICA SINICA, 1997, 21(1): 24-30.
Citation: Yang Daiqin, Chen Fang, Li Daokia, Liu Baitao. PRELIMINARY STUDY ON THE FOOD COMPOSITION OF MUD EEL, MONOPTERUS ALBUS[J]. ACTA HYDROBIOLOGICA SINICA, 1997, 21(1): 24-30.

黄鳝食性的初步研究

PRELIMINARY STUDY ON THE FOOD COMPOSITION OF MUD EEL, MONOPTERUS ALBUS

  • 摘要: 通过对不同产地的271尾野生黄鳝的食性研究表明,全长小于100mm的稚鱼,其食性随着全长的生长而变化,稚鱼前期以摄食轮虫,枝角类为主,后期则以水生寡毛类、摇蚊幼虫为主。而全长101mm-200mm的幼鳝及全长大于200mm的成鳝的食性,随全长变化相对稳定,且幼鳝和成鳝的食谱基本相同,其主要食物组成均包括摇蚊幼虫、水生寡毛类、蚯蚓、昆虫幼虫、枝角类和桡足类等。其肠内含物中的饵料生物种类,含量均存在季节变化。黄鳝无论稚鱼期,还是幼鱼期、成鱼期,其肠内含物中均有一定比例的浮游植物、着生藻类及腐屑,说明黄鳝除摄取动物性饵料外,还部分摄取植物性饵料,这表明人工饲养黄鳝,用配合饲料投喂应是可行的。

     

    Abstract: Food compositions of mud eels, Monopterus albus were investigated in areas of three counties in Hubei province.Diets of the mud eels with body length less than 100mm changed with their growth: from Rotifera and Cladocera to Oligochaeta and Chironomidae. However, the food composition of the mud eels with body length more than 100mm were quite constant, with Chironomidae, Oligochaeta, Pheretima,Cladocera, Copepoda and insect larvae as the major food items found.Phytoplanktons,benthic algae and organic debris were also found in intestines of the fish, indicating that the fish is to a large extent omnivorous.It is suggested that artificial feeds may be emploged in the culture of the fish.

     

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