Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande. 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 / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL hane/ej könsbestämd; (Ref. 5723); common length : 12.0 cm TL hane/ej könsbestämd; (Ref. 12193); rapporterad maxålder: 7 år (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
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.00501 (0.00202 - 0.01242), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.6 ±0.27 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tmax=7).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
