Michael Kühl, Marine Biological Laboratory,
Institute of Biology, University of Copenhagen,
Strandpromenaden 5, DK-3000 Helsingør.
Phone: +45 49213344. Fax: +45 49261165.
E-mail: mkuhl@bi.ku.dk

Niels Peter Revsbech, Department of Microbiology,
Institute of Biology, University of Aarhus,
Ny Munkegade Building 540, DK-8000 Aarhus C.
Phone: +45 89423244. Fax: +45 86127191.
E-mail: revsbech@biology.au.dk

List of Participants ( Pictures 1 )