Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Temperate; 38°N - 37°N
North America: upper Roanoke, upper Dan and upper Chowan River systems (in Roanoke River drainage) in Virginia, USA.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL mâle / non sexé; (Ref. 5723); common length : 9.8 cm TL mâle / non sexé; (Ref. 12193); âge max. reporté: 6 années (Ref. 12193)
Occurs in gravel and boulder runs of small to medium rivers.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources 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).
Niveau trophique (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tmax=6).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).