Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce benthopelagico. Temperate; 38°N - 37°N
North America: upper Roanoke, upper Dan and upper Chowan River systems (in Roanoke River drainage) in Virginia, USA.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL maschio/sesso non determinato; (Ref. 5723); common length : 9.8 cm TL maschio/sesso non determinato; (Ref. 12193); Età massima riportata: 6 anni (Ref. 12193)
Occurs in gravel and boulder runs of small to medium rivers.
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
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
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00235 - 0.01227), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tmax=6).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).