水1Lの分析で絶滅危惧種ニホンウナギの河川内分布を明らかにできる!(図3) (IMAGE) Kobe University Caption ニホンウナギの個体数と河川中の環境DNA濃度との関係 Credit Kobe University Usage Restrictions Please credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.