Gravenche
| Gravenche | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Salmoniformes |
| Family: | Salmonidae |
| Genus: | Coregonus |
| Species: | †C. hiemalis
|
| Binomial name | |
| †Coregonus hiemalis Jurine, 1825
| |
The gravenche (Coregonus hiemalis), also known as the Lake Geneva whitefish or the little fera, is a presumably extinct freshwater fish from Lake Geneva in Switzerland and France.
Description
The gravenche was a species of freshwater whitefish (Coregoninae) that reached a length between 25 and 32 centimetres (9.8 and 12.6 in).[1][2]
The status of the gravenche is disputed because there are no specimens in museums. While
Biology
The gravenche is a
Extinction
Together with the likewise extinct true fera (Coregonus fera), the gravenche was one of the most important species for fisheries in Lake Geneva in the late 19th century. In 1890 these two fishes made up 68% of all fish caught in the lake.[2] Overfishing and eutrophication drove the gravenche to near extinction and it was last seen in the early 1900s.[4][5]
References
- ^ ISBN 80-85665-87-5
- ^ a b Christian Trépey: Corégone (Féra - Palée) www.plongee-passion.ch (in French)
- ^ a b Kottelat, M. & Freyhof, J. (2007). Handbook of European Freshwater Fishes. Cornol & Berlin: Kottelat & Freyhof.
- IUCN Red List of Threatened Speciesc. 2015-4
- ^ Froese, Rainer; Pauly, Daniel (eds.) (2016). "Coregonus hiemalis" in FishBase. April 2016 version. Note: this source states that an introduced population of the gravenche, used for stockings, would still exist in the French Lake Aiguebette, in contrast to the IUCN account; this may represent confounding of information on different species.
External links
