信阳市罗山县鱼类资源调查

Investigation on fishery resources in Luoshan County of Xinyang

2015年8-9月及2016年4月,我们对信阳市罗山县鱼类资源开展调查。针对罗山县水系分布特点,共设置11个采样点,以罗山县境内竹竿河、小潢河和水库为调查重点,并结合当地农贸市场收集鱼类样本。本次调查共收集鱼标本49种,隶属于4目11科41属。其中鲤形目种类最多,占总种数的75.51%,其次是鲈形目和鲇形目,各占总种数的14.29和8.16%,合鳃鱼目1种,占总种数的2%。调查结果显示:罗山县鱼类物种较丰富,群落较复杂,鱼类在摄食、繁殖及栖息习性等方面呈现多样化特征。根据鱼类区系复合体学说,罗山县鱼类资源以中国平原区系复合体种类为主。

An investigation on fish resources in Luoshan County of Xinyang was carried out from August to September in 2015 and April in 2016.Eleven sampling locations were selected involving reservoirs,rivers and mountain streams.We collected 49 species,belonging to 41 genus,11 families and 4 orders.It was shown that Cypriniformes was the dominant species in this area,which accounted for 75.51% of the total,Perciformes and Siluriformes each accounted for 14.29% and 8.16% respectively.Synbgranchiformes both had only one species and each accounted for 2.04%.Abundant fish species and complex community were found in Luoshan,and their habits and lifestyles were highly diverse,including the feeding habits,breeding habits and inhabiting behaviors.These fish species could be divided into four fish-fauna complex,and the main species were classified into China Plain fish Fauna Complex.