Where has the Ruffe been recorded?

Gymnocephalus cernua occurrence evidence comes from 260,709 records in 32 countries and territories, from 1871 to 2026. Most records come from Sweden.

• 260,709 records
• 32 places
• 88 years recorded
• — class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: August. 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 Ruffe has been recorded

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