>
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).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale; 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.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 12.4 cm TL maschio/sesso non determinato; (Ref. 10294); common length : 5.7 cm TL maschio/sesso non determinato; (Ref. 12193); Età massima riportata: 3.00 anni (Ref. 12193)
Raggi dorsali molli (totale) : 8; Raggi anali molli: 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 vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
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). |
Livello trofico (Fonte Biblio. 69278) |
3.1 ±0.39 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (tmax=3). |
Vulnerabilità della pesca (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |