Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Temperate; 39°N - 37°N
North America: Atlantic Slope from upper Potomac River drainage in Virginia and West Virginia to Roanoke River drainage in northern central Virginia and adjacent West Virginia (absent in York River system), USA; upper New River drainage in Virginia (apparently extirpated), USA.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 5723); common length : 12.0 cm TL male/unsexed; (Ref. 12193); max. reported age: 7 years (Ref. 12193)
Inhabits rocky riffles and runs of moderate to swift creeks and small rivers. Young occur in rocky runs and pools.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00220 - 0.01254), b=3.09 (2.88 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.6 ±0.27 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=7).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
