AUTHOR=Borja Angel , Andersen Jesper H. , Arvanitidis Christos D. , Basset Alberto , Buhl-Mortensen Lene , Carvalho Susana , Dafforn Katherine A. , Devlin Michelle J. , Escobar-Briones Elva G. , Grenz Christian , Harder Tilmann , Katsanevakis Stelios , Liu Dongyan , Metaxas Anna , Morán Xosé Anxelu G. , Newton Alice , Piroddi Chiara , Pochon Xavier , Queirós Ana M. , Snelgrove Paul V. R. , Solidoro Cosimo , St. John Michael A. , Teixeira Heliana TITLE=Past and Future Grand Challenges in Marine Ecosystem Ecology JOURNAL=Frontiers in Marine Science VOLUME=7 YEAR=2020 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2020.00362 DOI=10.3389/fmars.2020.00362 ISSN=2296-7745