Examples of endangered and threatened fish species

First: An endangered holiday darter from the Amicalola Creek population, Georgia. Darters are among the most threatened Southeastern fish; they have been likened to aquatic canaries. Second: A threatened Waccamaw killifish from the Atlantic Slope region of the Southeastern United States. Third: A threatened sicklefin redhorse from the Tennessee River. Fourth: An endangered Alabama sturgeon from the Mobile River.