Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Leuciscidae
(Minnows) > Pogonichthyinae
Etymology: Campostoma: Greek, kampe = curved + Greek, stoma = mouth (Ref. 45335); ornatum: Campo=curved and stoma=mouth (in reference to its U-shaped mouth); ornate referring to ornamental coloration of breeding males (Ref. 79012). More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical; 33°N - 25°N
North America: Rio Grande system of Big Bend region in southern Texas, USA; Rucker Canyon and Leslie Creek in extreme southeastern Arizona, USA. Widespread in northern Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 86798); common length : 8.3 cm TL male/unsexed; (Ref. 12193)
Inhabits rocky riffles and adjacent pools of headwaters and creeks (Ref. 86798). Herbivorous, bottom feeder (Contreras-Balderas 1974). Feeds mainly on diatoms, bacteria and algae (Ref. 79012).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Adult males construct spawning pits by digging into the gravel with their snouts or mouths and remove small pieces of substrate (Ref. 51088, 31216). Mating occurs in the pits afterwhich the eggs are abandoned (Ref. 51087). Males are highly territorial (Ref. 51087). In other occasions, Campostoma species spawn in nests of Nocomis and Semotilus and with each other as nest associates (Ref. 51087). Also Ref. 51089.
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 Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00236 - 0.01065), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .