AUTHOR=Speich Sabrina , Lee Tong , Muller-Karger Frank , Lorenzoni Laura , Pascual Ananda , Jin Di , Delory Eric , Reverdin Gilles , Siddorn John , Lewis Marlon R. , Marba Nuria , Buttigieg Pier Luigi , Chiba Sanae , Manley Justin , Kabo-Bah Amos Tiereyangn , Desai Kruti , Ackerman Abby TITLE=Editorial: Oceanobs'19: An Ocean of Opportunity JOURNAL=Frontiers in Marine Science VOLUME=6 YEAR=2019 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2019.00570 DOI=10.3389/fmars.2019.00570 ISSN=2296-7745