AUTHOR=Seger Kerri D. , Sousa-Lima Renata , Schmitter-Soto Juan J. , Urban Edward R. TITLE=Editorial: Before-After Control-Impact (BACI) Studies in the Ocean JOURNAL=Frontiers in Marine Science VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2021.787959 DOI=10.3389/fmars.2021.787959 ISSN=2296-7745