禹州市鱼类资源调查

Current status of fishery resources in Yuzhou

2017年8月到9月在禹州市全境开展鱼类资源调查。根据禹州市的水系分布特征,共设置25个采样点。涵盖颍河、兰河、北汝河等淮河的一级及二级支流,纸坊水库等水库,并且结合当地的农贸市场收集鱼类样本。此次鱼类资源调查共得到鱼类样本32种,隶属于6目11科28属。其中种类最多的是鲤形目,占总数的68.75%;其次是鲈形目,占总数的12.5%;鲇形目和合鳃目各两种,各占总数的6.25%;鹤鱵目和鳉形目各一种,各占总数的3.125%。根据调查的结果显示,禹州市的鱼类资源较为丰富,鱼类在繁殖、摄食等方面呈现出多样化的特点。根据鱼类区系复合体学说,禹州市鱼类资源可以划分为:江河平原区系复合体;北方平原区系复合体;晚第三纪早期区系复合体;南方平原区系复合体。但北方平原区系复合体存在较少。

An investigation on fish resources in Yuzhou was carried out in Aug2017 to Sept2017.According to the distribution characteristics of Yuzhou City,a total of 25 sampling points are set.Covers the first and second tributaries of the Huaihe such as the Yinghe River,the Lanhe River and the North Ruhe River,and the reservoirs such as the Zhifang Reservoir,and collects fish samples in combination with the local farmers＇ markets.We col-lected Thirty-two species,belonging to 28 genus,11 families and 6 orders.Cypriniformes was the dominant species in this area,which accounted for 68.75% of the total,Perciformes accounted for 12.5%,Synbranchidae and Siluriformes each of the two species,each accounting for 6.25% of the total：Beloniformes and Cyprinodontiformes head of a species,each 3.125% of the total.The results showed that the fish in Yuzhou habits and lifestyles were diverse,including the feeding habits,breeding habits and inhabiting behaviors.According to the theory of fish fauna complex,the fish resources of Yuzhou can be divided into three types： China Plain fish Fauna Complex,Neogene Early Fauna Complex,Fauna of the South Plains Complex.However,there are not many Fauna of the North Plains Complex.