Where has the Eastern mosquitofish been recorded?

Gambusia holbrooki occurrence evidence comes from 4,981 records in 24 countries and territories, from 1860 to 2026. Most records come from United States.

• 4,981 records
• 24 places
• 122 years recorded
• — class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: April. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Records over time

Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.

Where Eastern mosquitofish has been recorded

The countries below show where occurrence evidence exists for Eastern mosquitofish. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.