Administrative & Editorial Positions:*Lead Scientist @ LOV: Marine Microbial Ecology Group 1996-2000; 2005-2008*Lead Scientist @ LOV: Physiology, Interactions and Structure of Communities Group 2019-2020*Deputy Editor: Marine Microbial Food Webs 1991-1994*Deputy Managing and Founding Editor: Aquatic Microbial Ecology 1995-2005*Associate Editor: Journal of Plankton Research 2008-2018*Editor-in-Chief: Journal of Plankton Research 2018-present*Co-Editor: Limnology and Oceanography Bulletin 2008-2015*Taxonomic Editor: World Register of Marine Species (Tintinnia) 2010-present*Associate Editor: Journal of Eukaryotic Microbiology 2014-2018*Scientific Society President: International Society of Protistology 2016-2017
