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Coregonus restrictus 

Scope: Global & Europe
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_on

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Salmoniformes Salmonidae

Scientific Name: Coregonus restrictus Fatio, 1885

Assessment Information [top]

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
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.

Geographic Range [top]

Range Description:Switzerland: Lake Morat.
Countries occurrence:
Regionally extinct:
Switzerland
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

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.
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Habitat:
Lacustrine, in deep waters.

Biology:
Spawns on sand or mud at 35-40 m deep, in January.
Systems:Freshwater

Use and Trade [top]

Use and Trade: Now extinct

Threats [top]

Major Threat(s): Eutrophication which happened before 1950s.

Conservation Actions [top]

Conservation Actions: None.

Citation: Freyhof, J. & Kottelat, M. 2008. Coregonus restrictus. The IUCN Red List of Threatened Species 2008: e.T135570A4149314. . Downloaded on 16 October 2018.
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