Riverscape snorkeling surveys of salmonid distribution and abundance before (2007, 2008) and after (2018, 2019) dam removal on the Elwha River, Washington

We used snorkel surveys in the Elwha River, conducted in consecutive years before (2007, 2008) and after (2018, 2019) dam removal to assess changes in fish...本研究于埃尔瓦河（Elwha River）开展浮潜调查（snorkel survey），分别在大坝拆除前的连续年份（2007、2008）与拆除后的连续年份（2018、2019）进行，以评估鱼类的相关变化……