1. Laboratoire d'Oceanographie Dynamique et de Climatologie; Paris; France
2. Heriot-Watt University; Edinburgh; UK
3. British Antarctic Survey; Cambridge; UK
4. Plankton Laboratory, Graduate School of Fisheries Sciences; Hokkaido University; Hakodate; Japan
5. National Marine Fisheries Service; Silver Spring; Maryland; USA
6. Marine Sciences Research Center; State University of New York at Stony Brook; New York; USA
7. Limnological Institute; University of Konstanz; Konstanz; Germany