Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;
College of Marine Life Science, Ocean University of China, Qingdao 266003, China;
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China;
Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;
Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;
Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;
biomass; heterotrophic bacterioplankton; distribution; Bohai Sea;