Rhinichthys osculus (Girard, 1856)

Speckled dace

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Cypriniformes \| Cyprinidae
Synonyms	Argyreus osculus, Agosia oscula, Apocope oscula, ... more
Common names	Naseux moucheté, Carpita pinta, 小点吻鱥, ... more

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Image of Rhinichthys osculus (Speckled dace)

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Main reference

Scott, W.B. and E.J. Crossman. 1973. (Ref. 1998)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 11.0 cm TL male/unsexed; (Ref. 5723); common length : 6.3 cm TL male/unsexed; (Ref. 12193)

Environment

Demersal; freshwater; pH range: 6.8 - 7.8; dH range: 5 - 25

Climate / Range

Temperate; 9°C - 11°C (Ref. 3672); 49°N - 31°N

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.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 6 - 7; Vertebrae: 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.

Inhabits rocky riffles, runs and pools of headwaters, creeks and small to medium rivers; rarely in lakes (Ref. 5723). Of some importance as forage species and widely used as bait fish in the USA.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Bait: usually


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (22 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Garilao, Cristina V.

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Page last modified by : elaxamana, 15 July 2009

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