Long-Term Changes in the Unique and Largest Seagrass Meadows in the Bohai Sea (China) Using Satellite (1974-2019) and Sonar Data: Implication for Conservation and Restoration. - Shaochun Xu; Shuai Xu; Yi Zhou; Shidong Yue; Xiaomei Zhang 001; Ruiting Gu; Yu Zhang; Yongliang Qiao; Mingjie Liu (Remote. Sens., 2021)