Brett Billings / USFWS · Public domain
Species guide
Yellow Perch
Perca flavescens
A schooling percid whose repeated triangular bars create one of the most recognizable freshwater side patterns.
Habitat
Ponds, lakes and slow-flowing rivers, often in clear water near vegetation.
Habitat supports a shortlist; it does not prove an identity. Water bodies change seasonally, and introduced populations may occur outside the best-known native setting.
Range
Widespread in northern and eastern North America, with introduced populations beyond the native range.
Check a current state, provincial or national fisheries record before making a high-confidence range claim. Drainage boundaries are more informative than political borders.
Compare carefully
Lighting can mute yellow and orange. Count and follow the dark flank bars while checking the paired dorsal fins.
When a decisive structure is hidden, record the observation as probable or unresolved. An honest uncertainty is more useful than a precise label built from incomplete evidence.
Responsible observation
A broadside image in neutral light records the bars and fin color; add a habitat frame if schooling behavior is visible.
For a live fish, prepare the camera first, use wet hands when handling is unavoidable, support the body and return it promptly according to local rules.