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Coregonus nigripinnis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA ACTINOPTERYGII SALMONIFORMES SALMONIDAE

Scientific Name: Coregonus nigripinnis
Species Authority: (Milner, 1874)
Common Name/s:
English Blackfin Cisco
Taxonomic Notes: There is considerable doubt as to whether this is a valid taxon, and some authors argue that it was just a form of Coregonus artedi.

Assessment Information [top]

Red List Category & Criteria: Extinct ver 2.3
Year Published: 1996
Date Assessed: 1996-08-01
Annotations:
Needs updating
Assessor/s: Gimenez Dixon, M.
Justification:
Formerly occurred in the Great Lakes, where it is now extinct; last known specimens were taken from Lake Huron in 1923 and from Lake Michigan in 1969. The decline and extinction of this species was due to overfishing, sea lamprey predation, and introgressive hybridization.
History:
1994 Endangered (Groombridge 1994)
1990 Extinct (IUCN 1990)
1988 Vulnerable (IUCN Conservation Monitoring Centre 1988)
1986 Vulnerable (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description: Formerly occurred in the Great Lakes (lakes Huron, Michigan, Ontario, and Superior); now apparently extinct in the Great Lakes; last known specimens from Lake Huron in 1923 and Lake Michigan in 1969. Populations of what may be this species are extant in Lake Nipigon and possibly in other localities in central Canada, but some authors argue that this is Coregonus artedi.
Countries:
Regionally extinct:
Canada; United States
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Habitat and Ecology: Occurred in the upper zones of deepwater areas of lakes.
Systems: Freshwater

Threats [top]

Major Threat(s): Decline and extinction due to overfishing, sea lamprey predation, and introgressive hybridization.
Citation: Gimenez Dixon, M. 1996. Coregonus nigripinnis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 17 April 2014.
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