| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | ACTINOPTERYGII | SALMONIFORMES | SALMONIDAE |
| Scientific Name: | Coregonus restrictus | |||
| Species Authority: | Fatio, 1885 | |||
Common Name/s:
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| Red List Category & Criteria: | Extinct ver 3.1 |
| Year Assessed: | 2008 |
| Assessor/s: | Freyhof, J. & Kottelat, M. |
| Reviewer/s: | Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit) |
|
Justification: Last recorded in 1890. Survey work in the 1950s found no Corgonus in the lake at all. The Corgonus that are present in the lake now originate from stocked individuals from other species. In 1950 it was already considered that eutrophication was responsible for the species extinction. |
|
| Range Description: | Switzerland: Lake Morat. |
| Countries: |
Regionally extinct:
Switzerland
|
| Range Map: |
(click map to view full version)
|
| Population: | Last recorded in 1890. Survey work in the 1950s found no coregonus in the lake. The Coregons that are present in the lake now originate from stocked individuals from other species. |
| Habitat and Ecology: |
Habitat: Lacustrine, in deep waters. Biology: Spawns on sand or mud at 35-40 m deep, in January. |
| Systems: | Freshwater |
| Major Threat(s): | Eutrophication which happened before 1950s. |
| Conservation Actions: | None. |
| Citation: | Freyhof, J. & Kottelat, M. 2008. Coregonus restrictus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 10 February 2012. |
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