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Gila topminnow (Poeciliopsis occidentalis) — Poeciliidae

Gila topminnow

Poeciliopsis occidentalis
Family: Poeciliidae
VU · Vulnerable

The Gila topminnow (Poeciliopsis occidentalis) is a freshwater fish of the family Poeciliidae that grows up to 6 cm.

Length
6 cm
Water
Freshwater
Diet
Omnivore
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
North America: Mexico, USA

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Description

The Gila topminnow is a livebearing molly (Poeciliidae) from fresh and brackish water of the Gila River system on the border of Mexico and Arizona. The species grows to about 6 cm. Through introduced mosquitofish and habitat loss the species is vulnerable. As a surface fish it lives in streams, pools and springs and eats algae, small invertebrates and detritus. The female gives birth to live young. Due to its very restricted range the species is vulnerable. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Gila topminnow?

The Gila topminnow has a torpedo-shaped body and is mainly silver-grey.

Where does the Gila topminnow live?

The Gila topminnow lives in fresh water and is mostly found around mixed bottom. North America: Mexico, USA

How big does the Gila topminnow get?

The Gila topminnow grows to a maximum of about 6 cm. On average the species is around 4 cm.

Is the Gila topminnow dangerous to humans?

No, the Gila topminnow is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

More photos

Gila topminnow (Poeciliopsis occidentalis) — Poeciliidae — 2
Rick Overson and Laura Steger (CC BY-NC 4.0) via GBIF — ASU
Gila topminnow (Poeciliopsis occidentalis) — Poeciliidae — 3
iNaturalist ((c) Wes Franklin, some rights reserved (CC BY-NC))
Gila topminnow (Poeciliopsis occidentalis) — Poeciliidae — 4
Wikimedia Commons — Brian Gratwicke (CC BY 2.0)
Gila topminnow (Poeciliopsis occidentalis) — Poeciliidae — 5
iNaturalist ((c) Corey Lange, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Gila topminnow sourced
Scientific name
Poeciliopsis occidentalis
Family
Poeciliidae

Appearance

Size class
Small verified
Max length (cm)
6.0 verified
Average length (cm)
3.5 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
North America: Mexico, USA sourced
Origin
Native inferred

Behaviour & biology

Diet
Omnivore inferred
Diet (detail)
Invertebrates, algae and detritus inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
Yes inferred
levensduur_max_jaar
1.0 verified
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Poeciliopsis

More from the family Poeciliidae

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