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Poeciliopsis occidentalis (Baird & Girard, 1853)

Gila topminnow
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Poeciliopsis occidentalis
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Poeciliopsis: Greek, poikilos = with a lot of colours + Greek, opsis = appearance (Ref. 45335).
More on authors: Baird & Girard.

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

Freshwater; benthopelagic; non-migratory. Subtropical; 25°C - 28°C (Ref. 2059); 34°N - 29°N

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

North America: in Gila River system in New Mexico and Arizona and streams south to western Mexico (Ref. 5723). Occurs naturally in the Colorado and Yaqui river basins at altitudes ranging from sea level to 1500 m. Note that high altitude occurrences are most commonly associated with outflows and springs.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 5723); common length : 3.5 cm TL male/unsexed; (Ref. 12193); max. reported age: 1.00 years (Ref. 12193)

Biology     Glossary (e.g. epibenthic)

Formerly occurred from Frisco Hot Spring, New Mexico, to near the mouth of the Gila River: it was perhaps more widespread in spring-fed creeks and marshes of southern Arizona between 900 and 1500 m above sea level. Inhabits vegetated springs and margins, pools and backwaters of creeks and small to medium rivers. Usually found in shallow, warm water.

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

Main reference Upload your references | References | Coordinator | Collaborators

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Least Concern (LC) ; Date assessed: 20 March 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
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Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Anatomy
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Physiology
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Swimming type
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Genetics
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References

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Internet sources

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

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=0.01023 (0.00454 - 0.02306), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (tmax=1).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).