Background
Beukema, Jan Jakobus was born on April 23, 1935 in Groningen, The Netherlands.
Beukema, Jan Jakobus was born on April 23, 1935 in Groningen, The Netherlands.
Doctor of Philosophy, State University Groningen, 1968.
Fishery biologist, Organisation for Improvement of Inland Fisheries, The Netherlands, 1963-1967; marine biologist, Netherlands Institute for Sea Research, Den Burg Texel, since 1967.