| Coregonus lavaretus | |
|---|---|
| European whitefish (Coregonus lavaretus, broad sense) | |
| Conservation status | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Salmoniformes |
| Family: | Salmonidae |
| Subfamily: | Coregoninae |
| Genus: | Coregonus |
| Species: | C. lavaretus |
| Binomial name | |
| Coregonus lavaretus (Linnaeus, 1758) |
|
Coregonus lavaretus is a species of freshwater whitefish, in the family Salmonidae. It is the type species of its genus Coregonus.[2]
There are widely different concepts about the number of species in the genus Coregonus and the delimitation of the species Coregonus lavaretus.
In a narrow sense, Coregonus lavaretus, or the lavaret, is considered to be endemic to Lake Bourget and Lake Aiguebelette in the Rhône river basin in France, whereas it formerly also occurred in Lake Geneva.[1] According to this view there is a great number of distinct whitefish species in lakes, rivers and brackish waters of Central and Northern Europe.[2]
In the broad sense, Coregonus lavaretus, referred to as the common whitefish or European whitefish, is widespread from central and northwest Europe to Siberia.[3] Often called the C. lavaretus complex and considered as a superspecies, it encompasses many of the whitefish populations suggested by others to be locally restricted species (such as the British powan and the gwyniad or the Alpine gravenche and the Jamtland sik), as well as distinct intralacustrine morphs and populations characterized by different feeding habits, gill raker numbers, growth patterns and migration behaviour. Genetic studies suggest that the whitefish diversity within this complex is mostly of post-glacial origin.[4] The resource polymorphism represented by the feeding morphs has evolved repeatedly and independently within individual lakes, and similar morphs in different lakes are not related to each other.[4]