The workshop held in Mombasa was an extremely successful one and for some participants a highlight of their Congress activities. Those participating were: Dr John J. Lee, Department of Biology, City College of CUNY; Dr Rudolf Rottger, Institut fur Allgemeine Mikrobiologie, Universitat Kiel; Dr Stanislaw Dryl, Department of Cell Biology, Nencki Institute (Poland); Mr Mrinal Ghosh, Department of Marine Science, Calcutta University; Dr Leonard Otieno, International Centre for Insect Physiology and Ecology; Dr Pamela and Dr Robert Hallock, Department of Marine Science, University of South Florida; Dr Wolfgang Lutkin.