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Shortjaw cisco
| Shortjaw cisco | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Salmoniformes |
| Family: | Salmonidae |
| Genus: | Coregonus |
| Species: | C. zenithicus
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| Binomial name | |
| Coregonus zenithicus (D. S. Jordan & Evermann, 1909)
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The shortjaw cisco (Coregonus zenithicus) is a North-American freshwater whitefish in the salmon family. Adult fish range to about 30 cm (12 in) in length and are silver, tinged with green above and paler below. One of the members of the broader Coregonus artedi complex of ciscoes, it is distributed widely in the deeper lakes of Canada, but populations in the Great Lakes have been declining and it is no longer present in Lakes Michigan, Huron, and Erie. It feeds mainly on crustaceans and insect larvae and spawns in the autumn on the lake bed. It is part of the important cisco (chub) fishery in the Great Lakes. The International Union for Conservation of Nature has rated its conservation status as "vulnerable".[1] Shortjaw cisco have however evolved from the cisco Coregonus artedi independently in different lakes and different parts of the range, and conservation assessments therefore should be made on a lake-wise rather than range-wide basis.[2]
- ^ a b Gimenez Dixon, M. (1996). "Coregonus zenithicus". IUCN Red List of Threatened Species. 1996: e.T5378A11125763. doi:10.2305/IUCN.UK.1996.RLTS.T5378A11125763.en. Retrieved 19 November 2021.
- ^ Julie Turgeon, Scott M. Reid, Audrey Bourret, Thomas C. Pratt, James D. Reist, Andrew M. Muir, Kimberly L. Howland (2016) Morphological and genetic variation in Cisco (Coregonus artedi) and Shortjaw Cisco (C. zenithicus): multiple origins of Shortjaw Cisco in inland lakes require a lake-specific conservation approach Conservation Genetics 17(1):45-56
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