1. Sarasota Dolphin Research Program; Chicago Zoological Society; ℅ Mote Marine Laboratory; 1600 Ken Thompson Parkway Sarasota Florida 34236 U.S.A
2. Wildlife Ecology and Conservation; University of Florida; PO Box 110430 Gainesville Florida 32611 U.S.A
3. Everglades Research and Education Center; University of Florida; 3200 E. Palm Beach Road Belle Glade Florida 33430 U.S.A