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North America: Mountain and Piedmont regions of Atlantic Slope from Shenandoah River (Potomac River drainage) in Virginia to Neuse River drainage in North Carolina, USA; upper New River drainage in West Virginia, Virginia and North Carolina, USA. Introduced into the upper Holston River system in Virginia, and Big Sandy River system in Kentucky.
Tamanho / Peso / Idade
Maturidade: Lm? range ? - ? cm Max length : 7.2 cm TL macho/indeterminado; (Ref. 86798); common length : 5.5 cm TL macho/indeterminado; (Ref. 12193)
Chrosomus oreas can be distinguished by the possession of the following characters: black stripe along side broken under dorsal fin; large black spots in row along back and along upper side; 64-81 scales on lateral line; pharyngeal 0,5-5,0; snout moderately pointed; mouth slightly subterminal; coloration consists of olive to green-gold above, silver white to red below, bright red below (including lower half of opercle), behind opercle, and at base of dorsal fin in large males, bright silver pectoral and pelvic fin bases, black chin and breast, and yellow fins (Ref. 86798).
Adults inhabit rocky pools and runs of headwaters, creeks and small to medium rivers (Ref. 86798). Migratory behaviour is undetermined (Ref. 126106).
Ciclo de vida ou comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Dinâmica populacional Parâmetros de crescimento Idade máxima / tamanhos Relação comprimento-peso. Relação comprimento-comprimento. Frequências de comprimento Conversão de massa Recrutamento Abundância
Ciclo de vida Reprodução Maturidade Maturidade/Rel. das guelras Fecundidade Desova Agregações de desova Ovos Desenvolvimento dos ovos Larvas Dinâmica larval
Fisiologia Composição corporal Nutrientes Consumo de oxigênio Tipo de natação Velocidade de natação Pigmentos visuais Som de peixe Doenças e Parasitas Toxicidade (LC50s)
Índice de diversidade filogenética (Ref. 82804): PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Nível Trófico (Ref. 69278): 2.0 ±0.00 se; based on food items.
Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref. 59153): Low vulnerability (10 of 100). 🛈
