|Scope: Global & Europe|
|Scientific Name:||Coregonus nobilis Haack, 1882|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Assessor(s):||Freyhof, J. & Kottelat, M.|
|Reviewer(s):||Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)|
Only known from Lake Vierwaldstätter (Lake Lucerne 102 km²). Thought to be extinct, due to eutrophication of the lake in the 1970s, but was re-discovered in early 2000s. The population seems to be on the increase as water quality improves. There are no known current, future or potential threats to the species as water quality is improving and there is strict controls on the introductions of species in Swiss lakes.
|Range Description:||Switzerland: Lake Vierwaldstätter.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Thought to be extinct, but was re-discovered in early 2000s. The population seems to be on the increase.|
|Current Population Trend:||Increasing|
|Habitat and Ecology:||Habitat: |
Lacustrine, pelagic, feeding at 5-30 m depth.
In July-September, moves to depths of up to 80-200 m to spawn. Feeds on crustaceans.
|Major Threat(s):||Eutrophication was thought to have caused the species to go extinct. Now conditions in the lake are improving.|
|Conservation Actions:||Improving water quality.|
|Citation:||Freyhof, J. & Kottelat, M. 2008. Coregonus nobilis. The IUCN Red List of Threatened Species 2008: e.T135616A4162968.Downloaded on 15 October 2018.|
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