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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Rhinichthys: Greek, rhinos = nose + Greek, ichthys = fish (Ref. 45335); atratulus: From the word atratus, meaning clothed in black (Ref. 10294).
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce demersal; potamodromo (Ref. 126106). Temperate; 0°C - 29°C (Ref. 35682); 57°N - 34°N
North America: Atlantic, Great Lakes, Hudson Bay, Mississippi River, and upper Mobile Bay drainages Nova Scotia to Manitoba, Canada and south to northern Georgia and northern Alabama, USA.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 12.4 cm TL macho / no sexado; (Ref. 10294); common length : 5.7 cm TL macho / no sexado; (Ref. 12193); edad máxima reportada: 3.00 años (Ref. 12193)
Radios blandos dorsales (total) : 8; Radios blandos anales: 7. Rhinichthys atratulus can be diagnosed by the following characters: back and side with many brown-black specks; deep caudal peduncle; barbel in corner of mouth; groove separating snout from upper lip absent; pointed snout slightly overhangs mouth; 53-70 scales on lateral line; 7 anal rays; pharyngeal teeth 2,4-4,2. Body light brown above, black spot followed by silver spot on dorsal fin base; black stripe along side, through eye and onto snout, continuous in young, as blotches in adult; often a silver stripe above black stripe; and silver white below. Breeding male can be distinguished by having pads on upper surface of pectoral fin, yellow-white pectoral and pelvic fins, white to red stripe below black body stripe (Ref. 86798). Body stout, spindle-shaped; mouth slightly inferior, slightly oblique and extending to below nostril; pointed barbel in groove at angle of mouth. Gill rakers short, conical, widely spaced (Ref. 54725).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Adults inhabit rocky runs and pools of headwaters, creeks and small rivers (Ref. 5723, 10294, 86798). They feed on aquatic insects (Ref. 54729, 10294), diatoms and other algae (Ref. 54725). Considered as an attractive aquarium pet and propagation through artificial fertilization is practical (Ref. 54725).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00891 (0.00491 - 0.01617), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.1 ±0.39 se; based on food items. |
Resiliencia (Referencia 120179) |
Alto, población duplicada en un tiempo mínimo inferior a 15 meses (tmax=3). |
Vulnerabilidad pesquera (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |