Data collected in 2008-2022 to assess nearshore subtidal community responses to increased sediment load during and after removal of the Elwha River dams, Washington State, USA

Data are time series of substrate grain size, vertical relief, and measures of abundance (e.g., density, percent cover) of the nearshore subtidal (5-16 m depth) benthic community (vegetation, invertebrates, and fish) collected before (2008-2011), during (2012-2014), and after dam removal (2015-2022).

本数据集为时间序列数据，涵盖底质粒径（substrate grain size）、垂直起伏度，以及水深5~16米的近岸潮下带底栖生物群落（benthic community，包含植被、无脊椎动物与鱼类）的丰度表征指标（如密度、盖度百分比）。该数据分别于大坝拆除前（2008-2011年）、拆除期间（2012-2014年）及拆除后（2015-2022年）完成采集。