Lake Geneva white-fish

Lake Geneva white-fish

Taxobox
name = Lake Geneva white-fish


image_width =
status = EX
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
ordo = Salmoniformes
familia = Salmonidae
subfamilia = Coregoninae
genus = "Coregonus"
species = "C. hiemalis"
binomial = "Coregonus hiemalis"
binomial_authority = (Jurine, 1825)The Lake Geneva white-fish ("Coregonus hiemalis"), also known as Little Fera or Gravenche is a presumed extinct freshwater fish from Lake Geneva in Switzerland and France.

Description

The status of the Lake Geneva white-fish is disputed because there are no specimens in museums. While Emile Dottrens described it as subspecies of Coregonus lavaretus in 1958, other experts like Maurice Kottelat regarded it still as full species endemic to Lake Geneva. It reached a length between 25 and 32 centimetres.

Biology

The Lake Geneva white-fish was a benthopelagic freshwater fish, that means it occurred near the ground in very deep waters. It was fed from zooplankton. The spawning was in mid-December.

Extinction

Together with the likewise extinct Fera ("Coregonus fera") it was one of the most caught freshwater fish in the Lake Geneva in the late 19th century. In 1890 the fishing quota of these two fish made 68% of all fish caught in Lake Geneva. Overfishing drove the Lake Geneva white-fish to almost extinction in 1920 and it was last seen in 1950.

References

*Maurice Kottelat: "European Freshwater Fisches. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non - systematists and comments on nomenclature and conservation"; Biologia: Section Zoology vol. 52/5, Slovak Academic Press, Bratislava 1997, ISBN 8085665875

External links

* [http://susi.e-technik.uni-ulm.de:8080/Meyers2/seite/werk/meyers/band/13/seite/0728/meyers_b13_s0728.html Meyers Konversationslexikon - Renke] (German)
* [http://www.calacademy.org/research/ichthyology/catalog/fishcatmain.asp Catalog of Fishes Corregonus hiemalis]
* [http://services.alphaworks.ibm.com/manyeyes/static-resources/data/89ade5ae109c926d01109e4c7f250123.txt CREO Status]
* [http://filaman.ifm-geomar.de/Summary/SpeciesSummary.php?id=49192&CFID=37698195&CFTOKEN=53393813 Fisbase entry]
* [http://www.plongee-passion.ch/Faune/Fera.htm Corégone féra] fr


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