桐柏县鱼类资源调查

Current status of fishery resources in Tongbai County

2016年11月,鱼类资源调查队对桐柏县主要的河流以及水库展开调查工作。根据桐柏县的水系分布特征,共设置了32个采样点。涵盖陈留店河、月河、淮河、三夹河、鸿雁河、鸿仪河等河流,以及二郎山水库、赵庄水库等,并且结合当地的农贸市场收集相关的鱼类标本。本次调查共采集鱼类样本41种,隶属于6目12科35属。其中鲤形目最多,占总数的70.73%;其次是鲈形目,占总数的9.75%;鲇形目占总数的7.32%;合鳃目和鳉形目各两种,各占总数的4.88%;鲑形目一种,占总数的2.44%。根据调查结果显示:桐柏县的鱼类在栖息、繁殖、生长习性等诸多方面,表现出了各种各样的特点。根据鱼类区系复合体系学说,桐柏县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。桐柏县鱼类资源主要以江河平原区系复合体为主。

An investigation on fish resources in Tongbai county of Nanyang city was carried out in November 2016. Thirty-two sampling locations were chosen involving reservoir, rivers and mountain streams. It covers the Chenliudian river, Yuehe river, Huaihe river, Sanjiao river, Hongyan river, Hongyi river and other rivers, as well as Erlangshan Reservoir, Zhaozhuang Reservoir, also collects specimens of the fish in local farmers＂ markets. We col- lected Forty-one species, belonging to 35 genus, 12 families and 6 orders. Cypriniformes was the dominant species in this area, which accounted for 70.73% of the total, Perciformes accounted for 9.75%,Siluriformes accounted for 7.32%,Synbranchiformes and Cyprinodontiformes each accounted for 4.88%, Salmoniformes accounted for 2.44%. The results showed that the fish in Tongbai had diversified characteristics in habitat selection, breeding, and growth habit. These fish species can be divided into four fish-fauna compliex： China Plain Fish Fauna Comlpex, Fauna of the North Plains Complex, Neogene Early Fauna Complex, Fanua of the South Plains Comlplex. The main species were classified into China Plain Fish Fauna Comlpex.