Cambarus scotti

This species only occurs in nine localities along the Coosa River basin (extent <5000 sq. km). It has not been found in any other stream systems and is thought to be endemic to this river. However, there is information major threats which may be having an impact on this species, but it has been described as abundant at some sites where it occurs; especially sites where it was recently found in the Coosa basin in Alabama. It seems secure throughout at least the southern portion of its range.

Restricted to the Chattooga River basin (Upper Coosa system) in Chattooga and Walker counties in Georgia and Cherokee County, Alabama. The Alabama specimens are tentatively assigned to this species, but do not share all characters (Hobbs 1981), although it is listed as occurring in Alabama in Taylor et al. (2007). Mirarchi et al. (2004; appendix 1.2 pub. separately) lists this species in Alabama from 9 records in the upper Coosa River system (Chattooga River).

Collected at 14 sites in Chattooga (Clarks Creek, Lyerly Creek, Chattooga River in 3 sites, Chappel Creek, Cane Creek, Perennial Spring Run) and Walker Cos. (Cane Creek at 2 sites, Town Creek, Duck Creek at 2 sites), Georgia and five sites in Cherokee (creek north of Gaylesville, Terrapin Creek at 2 sites, Chattooga River), Calhoun (Choccolocco Creek, Terrapin Creek, tributary to Terrapin Creek at 2 sites), and St. Clair Cos. (stream east of Blount Co. line), Alabama (Hobbs, 1981). Mirarchi et al. (2004; appendix 1.2 pub. separately) and Schuster and Taylor (2004) list this species in Alabama from 9 records in the upper Coosa River system (Chattooga River) (Schuster et al., 2008) in Calhoun, Cherokee, and St. Clair Cos. There is one unverified lot in USNM from a creek in Greenville Co., South Carolina.

It is unknown whether Cambarus scotti is impacted by any major threat process. However, it is likely to be undergoing localized declines due to urbanization, alterations to the hydrological regime and water pollution.