Fin's Fish Guide
The Gravenche (Coregonus hiemalis) is a freshwater fish of the family Salmonidae that grows up to 40 cm.
The species was endemic to Lake Geneva, where it spawned in deep water in winter; owing to overfishing and eutrophication it became extinct in the early twentieth century.
Description
The gravenche is a slender whitefish of the family Salmonidae reaching about 40 cm. The streamlined, silvery body has a blue-grey back and an adipose fin between the dorsal and tail fins, characteristic of the salmonids. The species was endemic to Lake Geneva, where it spawned in deep water in winter; through overfishing and eutrophication it became extinct in the early twentieth century. In open water it filters zooplankton, mainly water fleas and copepods. The whitefish form a taxonomically difficult complex, with many lakes holding their own, often endemic forms that spawn in different seasons and at different depths. With its fine flesh it is locally a valued commercial and sport fish.
Frequently asked questions
How do you recognise the Gravenche?
The Gravenche has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Slender, silver salmonid with an adipose fin between the dorsal and caudal fins; a whitefish that lives in shoals in cool, deep lake water.
Where does the Gravenche live?
The Gravenche lives in fresh water and is mostly found around open water. The species was endemic to Lake Geneva, where it spawned in deep water in winter; owing to overfishing and eutrophication it became extinct in the early twentieth century.
How big does the Gravenche get?
The Gravenche grows to a maximum of about 40 cm.
Is the Gravenche dangerous to humans?
No, the Gravenche is harmless to humans. None required: this species is harmless to humans.
Is the Gravenche edible?
Yes, the Gravenche is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Coregonus
More from the family Salmonidae
Want the complete picture on the Gravenche?
Point your camera at the fish and Fin names the species in seconds. Free, and the Gravenche is one of 12,519 species in the app.