Bryan conducted initial studies of bull sharks in the Floirda Coastal Everglades. His work focused on documenting spatial and temporal variation in catch rates of sharks within the estuary and analyzing stable carbon and nitrogen isotopes of bull sharks captured from the river mouth to 27 km upstream. Bryan received his M.S. in 2007 and his work formed the foundation for ongoing studies in the system. Bryan is currently working for the South Florida Water Management District. Bryan’s work led to a publication in Limnology and Oceanography.