The International Graduate course Ecology and Diversity of Marine Microorganisms, ECODIM, was established in 2000 as part of the International Graduate Course Series in Oceanography at the Austral Summer Institute of the University of Concepcion, Concepcion, Chile.

Over 100 students from 14 countries (Argentina, Brazil, Canada, Colombia, Cuba, Ecuador, Egypt, France, Mexico, Peru, Spain, Uruguay, Venezuela and Chile).

Over 50 lecturers, instructors and symposium speakers from 9 countries (Austria, Belgium, Denmark, France, Spain, Switzerland, The Netherlands, United States and Chile).