AUTHOR=Fu Weiwei , Ono Tsuneo TITLE=Editorial: Oxygen decline in coastal waters: its cause, present situation and future projection JOURNAL=Frontiers in Marine Science VOLUME=10 YEAR=2023 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2023.1316092 DOI=10.3389/fmars.2023.1316092 ISSN=2296-7745