Taxonomic placement
Genus Perca, family Percidae, order Perciformes.
Perch
Perch are freshwater fishes of the genus Perca in the family Percidae within the order Perciformes.
European perch (Perca fluviatilis)Red perch (common name for unrelated red drum)
Last Updated Mar 9, 2026 · 2 sources
Species Guide
What to know about perches
A clean field guide focused on habitat, identification, behavior, and conservation context without burying the useful parts.
Perch refers to freshwater fishes of the genus Perca, which belong to the family Percidae and the large order Perciformes. The genus name comes from the Greek πέρκη (perke) and the type species is the European perch (Perca fluviatilis). Many unrelated fishes are commonly called "perch," but true perch are members of the family Percidae. The earliest fossil remains of Perca are known from the Middle Miocene of Ukraine.
Identification
How to identify perches
The visual markers divers can use underwater, plus the species most likely to cause confusion.
Key identification markers
Habitat type
Freshwater species (true perch are freshwater fishes).
Type species
European perch (Perca fluviatilis) is the type species of the genus.
Common lookalikes
Red drum ('red perch')
The saltwater red drum is often called 'red perch' but is not a true perch and belongs to a different order (Acanthuriformes).
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Responsible Encounters
How to dive with perches
Conservation-minded guidance for divers who want the encounter without adding pressure.
Give perch space, avoid blocking the animal's path, and follow local site and operator rules for wildlife interactions with freshwater fishes.
Field Notes
Interesting things worth knowing
Useful species context that makes the encounter more meaningful once you are underwater.
Field notes
Etymology
The name derives from the Greek word πέρκη (perke).
Fossil record
Earliest fossil remains of Perca date to the Middle Miocene of Ukraine.
FAQ
Frequently asked questions
Clear planning and conservation answers written for search visibility and AI retrieval.
Research Sources
Perch information sources
Primary and credible references behind the field-guide and conservation claims on this page.
Sources 2Last Updated
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