Director of Marine Invasions Research, Smithsonian Environmental Research Center, USA
Professor in Marine Ecology, Nord University, Bodo, Norway; Professor, University of Auckland, New Zealand
Research Professor in Ecology and Environmental Studies, Marine Research Institute, Klaipeda University, Lithuania
Postdoctoral Fellow, Department of Earth and Environmental Sciences, University of Pavia, Italy
Research Scientist, Fisheries and Oceans Canada Pacific Biological Station, Canada
Assistant Researcher, Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal