1. National Oceanography Centre U. Southampton Waterfront Campus Southampton SO14 3ZH UK
2. Rhodes University Drosty Road Grahamstown 6139 South Africa
3. Central Marine Fisheries Research Institute Post Box No. 1603 Ernakulam North P.O. Kochi‐682 018 India
4. Fisheries Ecosystems Laboratory Oceanographic Institute University of São Paulo Cidade Universitária São Paulo SP 05580‐120 Brazil
5. Oceans and Atmosphere Flagship CSIRO Hobart TAS 7000 Australia
6. Institute for Marine and Antarctic Studies University of Tasmania PO Box 49 Hobart TAS 7001 Australia