Changing Seas Season 10 Episode 4 Fishing the Flats for Science ( Air Date 2018-06-27 ) Genre Documentary category. Overview "Flats fishing is popular with recreational anglers in the Caribbean and the Florida Keys. But until recently, little was known about tarpon, bonefish and permit – the species most coveted by sports fishermen. Now scientists are studying the fish to better understand their movements, habitat, and spawning behaviors.".