Chapter 3 Species
Addendum 1
3.13.4 Crayfish
The Crayfish Taxa Team reevaluated two species for consideration of conservation need and knowledge gap priorities, including one newly described species. Genetic work has identified a new stream-dwelling crayfish species, the South Mountain Crayfish ( Cambarus franklini ). As noted in Perkins et al. (2019) this species has a limited geographic range and is currently known only from the Henry and Jacob Fork watersheds in the upper South Fork Catawba River basin in western North Carolina. The South Mountain Crayfish was previously included in the Cambarus species C complex, a diverse group of crayfish broadly distributed in the eastern United States that are morphologically variable (Perkins et al . 2019). There were calculation errors from the 2015 NCWAP comprehensive revision for scores associated with the conservation threat assessment metrics 9.1 through 9.11 that were not caught during the review process. The errors are corrected with this minor revision which has resulted in the addition of three crayfish to the SGCN priority list: Carolina Foothills Crayfish, an undescribed crayfish ( Cambarus sp. A), and Croatan Crayfish. Minor revisions have also been made to incorporate state or federal listing status changes. Scientific naming convention updates include the use of Faxionus [= Orconectes ] in accordance with Crandall and De Grave (2017) and common usage accepted by species experts. All Taxa Team reevaluation results and changes to the priority species lists are provided in a table in Appendix GA1-3. Table 3A1-3 is a list of the changes to SGCN status based on the Crayfish Taxa Team reevaluation. The list provides federal/state listing status as well as Regional SGCN status designated by SEAFWA. Red text is used to indicate the changes made in this update. A complete updated list of all SGCN is provided in Appendix PA1.
Table 3A1-3 Changes to Crayfish SGCN. CRAYFISHES
SGCN Status* (2020 update) X (new) X (add*) X (add*)
Federal/ State Status*
SEAFWA Regional SGCN
Scientific Name
Common Name
-/- -/- -/-
X
Cambarus franklini
South Mountains Crayfish Carolina Foothills Crayfish An undescribed crayfish
- -
Cambarus johni Cambarus sp. A
3A1-7
2020 Addendum NC Wildlife Action Plan
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