Alpine whitefish (Coregonus alpinus)

General data
- Main name: Alpine whitefish
- Climates: Mountain
- Habitat: Freshwater
- Native: Europe
Classification
- Genus: Coregonus - Whitefishes
- Family: Salmonidae - Salmons and Trouts
- Order: Salmoniformes - Salmons and Trouts
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes
Description
Coregonus alpinus is a species of freshwater whitefish in the family Salmonidae. It is endemic to Lake Thun, in Switzerland, where it is found in deep water. The maximum length recorded for this species is 25 centimetres (9.8 in). It feeds on chironomids and other bottom-dwelling invertebrates. It is known as the kropfer, a name also applied to the probably extinct species Coregonus restrictus.