Professor of Marine Science, OIST-Academia Sinica

University of Delaware

Professor Emeritus, Kiel University

Professor of Earth Sciences-Emeritus

University of Southern California, Academy of Athens, Technical University of Crete

University of Algarve

Universidade Federal do Rio de Janeiro NUPEM/UFRJ

Professor of Evoutionary Biology & Ecology, University of California, Davis

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

Professor, Southern Cross University