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Teleostei (teleosts) > Cypriniformes (Carps) > Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Cyprinella: Latin, cyprinus = carp (Ref. 45335); alvarezdelvillari: Named for J. Alvarez del Villar.
Eponymy: Dr José Álvarez del Villar (1903–1986) was a Mexican biologist and ichthyologist who is regarded as the founder of modern Mexican ichthyology. [...] (Ref. 128868), visit book page.

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

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Central America: Mexico.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 40526)

Short description Identification keys | Morphology | Morphometrics

Eye diameter larger than snout length. Breast naked. Mouth very oblique. Tuberculation heavy especially on central dorsum of pectoral fins of breeding males, on chin, and spineless on lips. Mature breeding males with bronze underparts including fins. Anal and paired fins with white borders. Body dark, including venter, with large, sparse melanophores, most noticeable in mature males. Other sexes with lateral band as wide or wider than eye, especially around midsides in females (Ref. 40526).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Contreras-Balderas, S. and M. de Lourdes Lozano, 1994. Cyprinella alvarezdelvillari, a new cyprinid fish from Río Nazas of México, with a key to the Lepida clade. Copeia 1994(4):897-906. (Ref. 40526)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Vulnerable (VU) (D2); Date assessed: 12 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

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Stamps, coins, misc.

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00395 - 0.01919), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

Cyprinella alvarezdelvillari Contreras-Balderas & Lozano-Vilano, 1994