Two Significant Records of Exotic Tropical Freshwater Fishes in Southern Alabama

Abstract Incidental observations of aquatic exotic species may represent important early indicators of established populations. Herein we report ecologically significant observations of 2 exotic fish taxa in southern Alabama—Pterygoplichthys disjunctivus x pardalis (Amazon Sailfin Catfish) and Oreochromis niloticus (Nile Tilapia). Our observations establish the presence and confirm reproduction, respectively, of these species in the state.