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Person

Billy G Justus

Biologist

Lower Mississippi-Gulf Water Science Center

Email: bjustus@usgs.gov
Office Phone: 501-228-3626
Fax: 501-228-3601
ORCID: 0000-0002-3458-9656

Location
401 Hardin Rd
401 Hardin Road
Little Rock , AR 72211-3528
US

Supervisor: Richard A Rebich
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The Yellowcheek darter (YCD), Nothonotus moorei (Robison and Buchanan 2020), is endemic to the headwater tributaries (a.k.a. ‘forks’) of Little Red River system (South Fork, SF; Middle Fork, MF; Archey Fork, AF; and Beech Fork, BF) in north central Arkansas. Large portions of critical stream habitat in each stream fork were inundated in 1964 with the construction of Greers Ferry Dam, and the YCD is now restricted to relatively short, free-flowing stretches of each fork upstream of the dam. YCD were once reported as the most abundant riffle species in these headwater tributaries (Robison and Harp 1981), however, multiple status surveys and collection efforts in the decades since dam construction have documented a...
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