Executive Secretaries of the Intergovernmental Oceanographic Commission of UNESCO
2015 - present
Dr. Vladimir Ryabinin
Russia
2010 - 2015
1999 - 2009
Prof. Patricio Bernal
Chile
1989 - 1998
Dr. Gunnar Kullenberg
Denmark
1980 - 1989
Prof. Mário Ruivo
Portugal
1972 - 1980
Prof. Desmond P.D. Scott
UK
1970 - 1972
Dr. Sidney Holt
UK