Diplomfischwirt, Humboldt University, Berlin, 1954. Doctor agriculture, Humboldt University, Berlin, 1958. Doctor agriculture habilitatus, Humboldt University, Berlin, 1964.
Scientist Institute of Inland Fishery, Berlin, 1954-1966, head department pond culture and fish diseases, 1966-1991. Head department fish culture and fish pathology Institute Freshwater Ecology and Inland Fisheries, 1992-1996. Professor fish culture and fish nutrition Humboldt University, 1984-1999.
Member advisory board International Review of Hydrobiology, Berlin, 1994-2000, Aquaculture Nutrition, since 1995. Visiting professor fish nutrition University Philippines Miag-ao, Iloilo, 1997.
Member Inland Fisheries Association of East Germany (president 1990-1994), German Fisheries Association (committee member), International Association of Theoretical and Applied Limnology, German Anglers Association (vice president).
Married Andrea Eleonore Keienburg, May 4, 1963. Children: Dirk, Ulf.