United States (contiguous states) country information

Common names: Speckled dace
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: bait: yes;
Comments: Most ubiquitous fish in western USA. Occurs in many isolated western drainages and has diversified tremendously. Treated as a complex of subspecies, but its morphological variations and distribution are poorly known. The following are protected as endangered subspecies: Rhinichthys osculus nevadensis in Ash Meadows, Nevada; Rhinichthys osculus oligoporus in Clover Valley, Nevada; Rhinichthys osculus lethoporus in Independence Valley, Nevada; and Rhinichthys osculus thermalis in Kendall Warm Springs, Wyoming. The Foskett speckled dace, Rhinichthys osculus subspecies, in Foskett Spring, Warner Basin, Oregon is also protected as threatened subspecies (Ref. 86798). Of some importance as forage species and widely used as bait fish. Also Ref. 5723. Status of threat of the following subspecies: 1). Rhinichthys osculus lariversi: endangered. Criteria: 1,4,5; 2). Rhinichthys osculus lethoporus, Rhinichthys osculus nevadensis, and Rhinichthys osculus oligoporus: endangered; status same as 1989. Criteria: 1,4,5; 3). Rhinichthys osculus moapae: threatened; status same as 1989. Criteria: 1,3,4; 4). Rhinichthys osculus reliquus: extinct. Criteria: 1,4,5; 5). Rhinichthys osculus thermalis: endangered; status declined since 1989. Criteria: 3,5 ; 6). Rhinichthys osculus velifer: endangered. Criteria: 1,5 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Page, L.M. and B.M. Burr, 2011
National Database:

Common names from other countries

Naseux moucheté, Naseux moucheté, Carpita pinta, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Rhinichthys: Greek, rhinos = nose + Greek, ichthys = fish (Ref. 45335); osculus: osculus meaning small-mouthed (Ref. 1998).
More on author: Girard.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal; pH range: 6.8 - 7.8; dH range: 5 - 25. Temperate; 9°C - 11°C (Ref. 3672); 49°N - 31°N

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North America: western drainages (Pacific and endorheic) from Columbia River in British Columbia, Canada to Colorado River in Arizona and New Mexico, USA and south into Sonora, Mexico.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 11.0 cm TL Männchen/unbestimmt; (Ref. 86798); common length : 6.3 cm TL Männchen/unbestimmt; (Ref. 12193)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 0; Rückenflossenweichstrahlen (insgesamt): 8-9; Afterflossenstacheln 0; Afterflossenweichstrahlen: 6 - 7; Wirbelzahl: 37 - 38. Body elongate, greatest depth in front of dorsal fin. Head bluntly triangular, a small but distinct hump present behind the head. Mouth inferior, sucker-like, lower jaw with fleshy lip. Overall coloration gray or gray-brown with scattered and vague darker flecks, usually above midline of sides; lower sides and belly somewhat yellowish or creamy white. A faint lateral band present.

Occurs in rocky riffles, runs and pools of headwaters, creeks and small to medium rivers; rarely in lakes (Ref. 5723, 86798).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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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)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 10 September 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Köder: usually

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00501 (0.00232 - 0.01084), b=3.13 (2.94 - 3.32), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.9 ±0.36 se; based on food items.

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Rhinichthys osculus (Girard, 1856)