Gila nigrescens
Chihuahua Chub
ES: carpa de Chihuahua
Federal:
Threatened
NS
G1
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Cypriniformes (Carps and Minnows)
Cyprinidae (Carps and Minnows)
Gila
Gila nigrescens (Chihuahua Chub)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: fusiform / normal. Gila nigrescens can be distinguished by the following characters: lateral line with 67-78 scales; dorsal fin with 9 rays; anal fin with 8 rays; 1st gill arch with 9014 rakers; pharyngeal teeth 2,5-4,2; deep, compressed body; long, fairly slender caudal peduncle; terminal mouth on rounded snout; olive-gray above; silver side; clear to slate gray fins; and breeding individuals with red-orange mouth and paired and anal-fin bases (Ref. 86798).
Distribution
North America: Mimbres River in New Mexico, USA; Lagunas Guzman and Bustillos, Chihuahua in Mexico.
Habitat Associations
Freshwater. benthopelagic. Found in: streams.
Biology
Inhabits flowing pools of creeks and small rivers, usually near brush or other cover (Ref. 86798).
Max length: 24.0 cm TL.
Reproductive mode: dioecism; fertilization: external; nonguarders.
IUCN Red List Status: Vulnerable (VU), assessed 2019-02-28. Resilience: Medium (Preliminary K or Fecundity.).
References
Riehl, R. and H.A. Baensch (1991) Aquarien Atlas. Band. 1. Melle: Mergus, Verlag für Natur-und Heimtierkunde, Germany. 992 p.
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.
Comments On Gila nigrescens