基于eDNA metabarcoding探究北京市主要河流鱼类分布及影响因素

沈梅, 郭宁宁, 罗遵兰, 郭晓晨, 孙光, 肖能文

Explore the distribution and influencing factors of fish in major rivers in Beijing with eDNA metabarcoding technology

Mei Shen, Ningning Guo, Zunlan Luo, Xiaochen Guo, Guang Sun, Nengwen Xiao

表1 3条水系鱼类群落优势种的优势度指数

Table 1 Dominance index of dominant species in three river systems

北运河水系 Beiyun River System 潮白河水系 Chaobai River System 大清河水系 Daqing River System 物种 Species 优势度指数 Dominance index (Y) 物种 Species 优势度指数 Dominance index (Y) 物种 Species 优势度指数 Dominance index (Y) 鲫 Carassius auratus 0.5175 鲫 Carassius auratus 0.2556 宽鳍鱲 Zacco platypus 0.1517 麦穗鱼 Pseudorasbora parva 0.0888 拉氏鱥 Rhynchocypris lagowskii 0.1031 鲫 Carassius auratus 0.1475 小黄黝鱼 Micropercops swinhonis 0.0453 宽鳍鱲 Zacco platypus 0.0807 拉氏鱥 Rhynchocypris lagowskii 0.0968 泥鳅 Misgurnus anguillicaudatus 0.0448 鲇 Silurus asotus 0.0474 小黄黝鱼 Micropercops swinhonis 0.0540 高体鳑鲏 Rhodeus ocellatus 0.0345 子陵吻鰕虎鱼 Rhinogobius giurinus 0.0350 马口鱼 Opsariichthys uncirostris 0.0408 ? Hemiculter leucisculus 0.0205 麦穗鱼 Pseudorasbora parva 0.0242 华鳈 Sarcocheilichthys sinensis 0.0406 - - - - 褐吻鰕虎鱼 Rhinogobius brunneus 0.0400 - - - - 子陵吻鰕虎鱼 Rhinogobius giurinus 0.0376 - - - - 鲇 Silurus asotus 0.0340 - - - - 北鳅 Lefua costata 0.0241 - - - - 鲤 Cyprinus carpio 0.0233