2015 Wildlife Action Plan Inc Addendums 1 (2020) + 2 (2022)

4.5 River Basins

T ABLE 4.53 Water quality classifcation and rating information for the Chowan River Basin

Percent (Basin Waters)

Freshwater Miles

Freshwater Acres

Coastal Acres

Classifcations

Total Basin Waters*

2,338

— — —

1,787

— — —

16,500

— — —

HQW ORW

— —

Percent (Monitored Waters)

Freshwater Miles

Freshwater Acres

Coastal Acres

Use Ratings

Total Named Waters

799 222

— — — — —

Supporting Impaired Not Rated

55 40

7 5

No Data

482

* Total Basin Waters estimated from National Hydrography Dataset (NHD), April 2015 (EPA 2014b) .

are 22 impoundments of varying sizes in the basin. Most were built to provide recreation or irrigation waters and some were constructed as millponds.

4.5.7.3 Aquatic Species Tere are 12 SGCN in the basin: one crayfsh, eight fshes, and three mussel species. Appendix G provides a list of SGCN and other priority species for which there are knowl- edge gaps or management concerns. Appendix H identifes SGCN associated with aquatic communities found in this river basin. Table 4.54 identifes the SGCN found in the Chowan River Basin. 4.5.7.4 Threats Affecting Aquatic Species Invasive species (e.g., Asian Clam, Red Swamp Crawfsh, Channel Catfsh) have become established in the Chowan River Basin and continue to negatively impact native species populations. In the Chowan River Basin, elevated mercury levels have been measured in long-lived piscivorous (fsh-eating) predator fsh. Te NCDHHS, Division of Public Health has posted a fsh consumption advisory for the Chowan River Basin that includes all Largemouth Bass, Black Crappie, Catfsh, Chain Pickerel, and Warmouth; Yellow Perch, and Bowfn (or Blackfsh) caught east of I-85; and for Black Crappie caught south and east of I-95 for mer- cury contamination (NCDWQ 2011a) . Other fsh consumption advisories in the basin include

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2015 NC Wildlife Action Plan

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