基于形态学和分子系统学数据分析河南省鱼类新纪录种—北鳅

2016年4月至2017年10月,河南省鱼类资源调查队在河南省鱼类资源普查时,分别在林州、辉县、汝州等地采集到14尾鲤形目条鳅亚科鱼类,综合采用传统形态学结合分子系统学方法确定其为北鳅Lefua costata,为河南省新纪录种,标本保存于河南师范大学水产学院鱼类标本室.对该鱼的主要形态鉴定特征、分布区域、生存环境及生活习性等方面做了初步分析.该鱼在我国内蒙古、辽河、黑龙江水系、河北、山东济南等地均有相关记录.此次河南省境内采集到北鳅,扩大了该鱼在我国分布范围,也为后续基础研究提供了重要依据.

Analysis of new fish record of lefua costata in Henan province based on morphological and molecular systematic data

In October 2017, total of 14 Cypriniformes fishes were collected when an investigation on fish resources in Linzhou of Anyang city, Huixian of Xixiang city and Ruzhou of Pingdingshan city. The specimens were identified as Lefua costata by using integrated application of traditional morphological data and molecular systematic method, as new fish records in Henan province. The collected specimens are preserved in Fish Herbarium of College of Fisheries, Henan Normal University. The main morphological characteristics, distribution area, living environment and living habits of the fish were analyzed. This fish has been recorded in Inner Mongolia, Liaohe, Heilongjiang River, Hebei province, Jinan city of Shandong province and other places in northern China. This record of the Lefua costata in Henan province expanded the distribution area of this fish in China and provided an important basis for subsequent basic research.