AUTHOR=Ward Nicholas D. TITLE=Editorial: Integrative Research on Organic Matter Cycling across Aquatic Gradients JOURNAL=Frontiers in Marine Science VOLUME=4 YEAR=2017 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2017.00131 DOI=10.3389/fmars.2017.00131 ISSN=2296-7745