Coregonus restrictus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	SALMONIFORMES	SALMONIDAE

Scientific Name:

Coregonus restrictus

Species Authority:

Fatio, 1885

Common Name/s:

English

–

Férit, Kröpfer

Assessment Information [top]

Red List Category & Criteria:	Extinct ver 3.1
Year Published:	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.

Geographic Range [top]

Range Description:	Switzerland: Lake Morat.
Countries:	Regionally extinct: Switzerland
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.

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 [top]

Habitat and Ecology:	Habitat: Lacustrine, in deep waters. Biology: Spawns on sand or mud at 35-40 m deep, in January.
Systems:	Freshwater

Threats [top]

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

Major Threat(s):

Eutrophication which happened before 1950s.

Conservation Actions [top]

Conservation Actions:	None.

Conservation Actions:

None.

Bibliography [top]

	Fatio, V. 1890. Faune des vertébrés de la Suisse. V. Histoire naturelle des poissons. II. Physostomes (suite et fin), anacanthiens, chondrostéens, cyclostomes. Georg, Genève & Bâle. IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: http://www.iucnredlist.org. (Accessed: 5 October 2008). Kottelat, M. 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-sys tematists and comments on nomenclature and conservation. Kottelat, M. and Freyhof, J. 2007. Handbook of European Freshwater Fishes. Publications Kottelat, Cornol, Switzerland.

Fatio, V. 1890. Faune des vertébrés de la Suisse. V. Histoire naturelle des poissons. II. Physostomes (suite et fin), anacanthiens, chondrostéens, cyclostomes. Georg, Genève & Bâle.

IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: http://www.iucnredlist.org. (Accessed: 5 October 2008).

Kottelat, M. 1997. European freshwater fishes. An heuristic checklist of the freshwater fishes of Europe (exclusive of former USSR), with an introduction for non-sys tematists and comments on nomenclature and conservation.

Kottelat, M. and Freyhof, J. 2007. Handbook of European Freshwater Fishes. Publications Kottelat, Cornol, Switzerland.

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 23 May 2012.
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