1. Centre for Ocean Climate Chemistry, Institute of Ocean Sciences, P. o. Box 6000, Sidney, BC, Canada V8L 4B2
2. Western Ecological Services, Ltd., #2-2563 Penrhyn Street, Victoria, BC, Canada V8N JG2
3. Fisheries Oceanography Division, Seikai National Fisheries Research Institute, 49 Kokubu-machi, Nagasaki 850, Japan