Wide range
Occurs throughout Eurasia from Western Europe to the Ob and Yenisei Rivers in Asia.
Tench
Tinca tinca
The tench (Tinca tinca) is a freshwater and brackish-water fish found throughout much of Eurasia, typically in slow-moving lakes and lowland rivers.
doctor fish
Last Updated Mar 9, 2026 · 3 sources
Species Guide
What to know about tenches
A clean field guide focused on habitat, identification, behavior, and conservation context without burying the useful parts.
The tench, also called the doctor fish (Tinca tinca), is a member of the order Cypriniformes. It occurs across Eurasia from Western Europe (including Britain and Ireland) east into Asia as far as the Ob and Yenisei rivers, and is found in Lake Baikal. It normally inhabits slow-moving freshwater habitats, particularly lakes and lowland rivers, and can occur in brackish waters.
Typically inhabits slow-moving freshwater habitats such as lakes and lowland rivers; can also occur in brackish waters.
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Range and Movement
How tenches move through the world
The broad range, seasonal movement, or migratory behavior that shapes where divers encounter this species.
Typically inhabits slow-moving freshwater habitats such as lakes and lowland rivers; can also occur in brackish waters.
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Responsible Encounters
How to dive with tenches
Conservation-minded guidance for divers who want the encounter without adding pressure.
Give tench 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
Also in Lake Baikal
The tench is reported from Lake Baikal.
Common-name
Also known as the doctor fish.
FAQ
Frequently asked questions
Clear planning and conservation answers written for search visibility and AI retrieval.
Research Sources
Tench information sources
Primary and credible references behind the field-guide and conservation claims on this page.
Sources 3Last Updated
Tench · Encyclopedia · Wikipedia
Primary wildlife guide source.
Tench · Encyclopedia · Britannica
Supporting wildlife source.
Tinca tinca · Taxonomy · WoRMS
Taxonomy reference.
Related Species
More in Freshwater Fishes
Related species guides in the same encounter family.
