Fin's Fish Guide
The Blackfin gambusia (Gambusia atrora) is a freshwater fish of the family Poeciliidae that grows up to 3 cm.
Description
The dark mosquitofish is a small livebearer of the family Poeciliidae from Mexico. The species is small; like all Gambusia species the female bears live young and the male has an anal fin modified into a gonopodium for internal fertilisation. It prefers the current along steep banks and seeks food in stony crevices. As an omnivore it eats insects and their larvae, small zooplankton and algae. Owing to its restricted range and lack of data the species is regarded as data deficient. It is harmless to humans.
Frequently asked questions
How do you recognise the Blackfin gambusia?
The Blackfin gambusia has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Ovoviviparous with a gonopodium; searches for food in stony crevices along steep banks.
Where does the Blackfin gambusia live?
The Blackfin gambusia lives in fresh water and is mostly found around mixed bottom. Mexico; current along steep banks with stony crevices.
How big does the Blackfin gambusia get?
The Blackfin gambusia grows to a maximum of about 3 cm.
Is the Blackfin gambusia dangerous to humans?
No, the Blackfin gambusia is harmless to humans. None required: this species is harmless to humans.
Is the Blackfin gambusia edible?
The Blackfin gambusia is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Gambusia
More from the family Poeciliidae
Want the complete picture on the Blackfin gambusia?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blackfin gambusia is one of 12,519 species in the app.