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2015年10月-11月,对新乡市辉县全境47个样点开展鱼类资源调查,共获得鱼类28种,隶属于6目9科23属。其中鲤形目种类最多,占总种数的67.86%,其次是鲈形目和鲇形目,均占总种数的10.71%,鲑形目、鳉形目和合鳃鱼目各1种,各占总种数的3.57%。根据鱼类区系复合体学说,辉县鱼类资源可划分为中国平原鱼类区系复合体、晚第三纪早期鱼类区系复合体、南方平原鱼类区系复合体、北方平原鱼类区系复合体和北方山地鱼类区系复合体。
From October to November 2015, a survey of fish resources was conducted on 47 sampling sites throughout Huixian County of Xinxiang City. A total of 28 fish species were obtained, belonging to 6 orders, 9 families and 23 genera. Among them, Cyprinidae had the largest number of species, accounting for 67.86% of the total species, followed by Perciformes and Castanopsis species, both accounting for 10.71% of the total species, with 1 species of Salmonella, Accounting for 3.57% of the total species. According to the theory of fish fauna complex, the fish resources of Huixian can be divided into three types: the fish assemblage in the Chinese Plain, the fish fauna complex in the late Tertiary, the fish fauna complex in the southern plains, And the northern mountainous fish fauna complex.