Gambusia holbrooki

Basic information
Scientific name	Gambusia holbrooki	(No picture)
Common names	Eastern Mosquitofish
Higher taxon	Poeciliidae, Cyprinodontiformes, Actinopterygii
Natural range	East coastal region of America
Habitat	Under Construction.

Invasion information
Range in Japan	Not established in Japan
Origin	Unintroduced to Japan.
Date
Route
Impact	Potentially: Competition with and predation on native species
Regulation in Japan	Invasive alien species (Invasive Species Act)
Introduced range in other countries	Except for some areas such as South America, East Asia, South Africa and America (regions not originally distributed), it is widely distributed throughout the world.

Reference

Notes

Outline of alien species that was deemed appropriate for designation as Invasive alien species at a specialist meeting(Accessed on 2018-12-07)https://www.env.go.jp/press/files/jp/29584.pdf
(Proposal) Information and evaluations on alien species considered to require selection of invasive alien species.（Accessed on 2018-12-07）https://www.env.go.jp/nature/intro/4document/data/sentei/10/mat04.pdf

Possibly causing extensive damage to native ecosystems by predation and competition due to similar ecology to the G. affinis.