Fish fauna detected by eDNA metabarcoding in damaged rivers by heavy rainfall in Northern Kyushu District, Japan in July 2017

In recent years, torrential rains exceeding the conventional assumption occurred in various places in Japan. In this research, in addition to the conventional method of capture survey, we conducted environmental DNA metabarcoding using MiFish primer sets that can easily detect fish fauna in rivers that were damaged by the heavy rainfall in Northern Kyushu District, Japan in July 2017. The goal of this research is to describe and evaluate an example of the impact of large-scale disasters on the fish fauna of rivers.

近年来，日本多地出现超出常规预设的极端暴雨。本研究在采用传统捕获调查法的基础上，针对2017年7月日本九州北部地区因暴雨受损的河流，使用可便捷检测河流鱼类区系的MiFish引物组（MiFish primer sets）开展了环境DNA元条形码（environmental DNA metabarcoding）分析。本研究旨在描述并评估大型灾害对河流鱼类区系造成影响的典型案例。