摘要
2014年5-10月在锦江河采集餐条成鱼标本共180尾,并对其形态学测量和食性进行研究。结果显示：餐条的肠较长,约为体长的2倍,鳃耙数为16~20枚,鳃耙排列疏密程度适中,是偏动物性的杂食性鱼类,其食物组成为枝角类、桡足类、水生昆虫、藻类、小鱼、虾等;夏季是餐条的繁殖盛期,性腺充满体腔,且餐条大量吸收营养物质,在餐条肠充塞度和摄食率的研究中,6月份和7月份出现餐条肠充塞度和摄食率明显减少,可能与其繁殖时期对食物的消化吸收能力增强和性腺充满体腔有关。
Collected the Hemicculter leuciclus specimens a total of 180 at the Jinjiang River in May to October,2014.Then according to related analysis of their morphology and feeding habits,the result showed that the Hemicculter leuciclus bowels were longer,which were twice its body length,and Hemicculter leuciclus gills’ density were very moderate,which were about 16 to 20. Their foods mainly consisted of ciadocera,copepods,aquatic insects and algae,fish,shrimp and so on,they were similar with animals. The breeding peak of Hemicculter leuciclus was in summer,with their bodies fulled of gonads,besides,a large of nutrients would be absorbed by them. In the study of intestine fullness and feeding rate,the survey concluded that their intestine fullness and feeding rate were significantly reduced in June and July. Perhaps that was related to absorption of foods and goads during breeding season.
出处
《安徽农学通报》
2016年第10期117-120,共4页
Anhui Agricultural Science Bulletin
关键词
锦江河
餐条
食性
Jinjiang river
Hemicculter leuciclus
Feeding habits
