1. Oceanlab; University of Aberdeen; Main Street Newburgh AB41 6 AA UK
2. Scottish Association for Marine Science; Dunstaffnage Marine Laboratory; Argyll Oban PA37 1QA UK
3. Integrative Biology of Marine Models; Centre National de la Recherche Scientifique; Station Biologique; Roscoff F-29680 France
4. Marine Plants and Biomolecules Laboratory; Université Pierre et Marie Curie, Université Paris 6; Station Biologique; Roscoff F-29680 France
5. European Molecular Biology Laboratory (EMBL); Hamburg Unit; c/o DESY, Notkestrasse 85 Hamburg D-22607 Germany
6. Department of Organic Chemistry; Institute for Molecules and Materials; Radboud University Nijmegen; Heyendaalseweg 135 Nijmegen NL-6525 AJ The Netherlands