Gila topminnow (Poeciliopsis occidentalis) fish species and information / pictures of Gila topminnow - Poeciliopsis occidentalis

Gila topminnow (Poeciliopsis occidentalis) fish species information

Scientific Name
Poeciliopsis occidentalis

Common Name
Gila topminnow

Biology
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.

Classification

Classified By
Baird & Girard, 1853
Class
Ray-finned fishes (Actinopterygii)
Order
Live bearers, Killifishes and Rivulines (Cyprinodontiformes)
Family
Poeciliids (Poeciliidae)

Distribution

Region
North America
Distribution
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.
Range
34°N - 29°N

Environment

Climate
Subtropical
Water Temperature From
25 °C
Water Temperature To
28 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; benthopelagic; non-migratory
Trophic Level
2 s.e. 0.00 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
6.0 cm
Common Length
3.5 cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (19 of 100)
Resilience
High, minimum population doubling time less than 15 months (tmax=1)
Threat To Humans
  Harmless
IUCN Red List Status