AUTHOR=Leung Jonathan Y. S. , Harvey Ben P. , Russell Bayden D. TITLE=Editorial: Fitness of Marine Calcifiers in the Future Acidifying Ocean JOURNAL=Frontiers in Marine Science VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2021.752635 DOI=10.3389/fmars.2021.752635 ISSN=2296-7745