Dr. Crabtree has served as the regional administrator of NOAA Fisheries Service's Southeast Regional Office since January 2003. Previously, Dr. Crabtree was a senior research scientist at the Florida Fish and Wildlife Conservation Commission's Florida Marine Research Institute, and the director of the Commission's Division of Marine Fisheries. He has served these state and federal fishery management agencies for over 15 years, after beginning his career as a self-employed fishing guide in the Florida Keys and Everglades National Park.