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Gwyniad
| Gwyniad | |
|---|---|
| |
| Individual caught in 1904 | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Salmoniformes |
| Family: | Salmonidae |
| Genus: | Coregonus |
| Species: | C. pennantii
|
| Binomial name | |
| Coregonus pennantii Valenciennes, 1848
| |
The gwyniad (Coregonus pennantii) is a freshwater whitefish native to Bala Lake (Welsh: Llyn Tegid) in northern Wales.
The population is threatened by deteriorating water quality and by the ruffe, a fish introduced to the lake in the 1980s and now eating the eggs and fry of gwyniad. As a conservation measure, eggs of gwyniad were transferred to Llyn Arenig Fawr, a nearby reservoir, between 2003 and 2007.[2][1][3]
The taxonomy of the genus Coregonus is disputed;[4] some authorities assign the gwyniad to the common whitefish (Coregonus lavaretus),[2][5] and a morphological review in 2012 was unable to find any solid evidence for recognizing the gwyniad as a separate species.[6] FishBase and the IUCN list it as a distinct species, C. pennantii.[1][4]
- ^ a b c Ford, M. (2024). "Coregonus pennantii". IUCN Red List of Threatened Species. 2024: e.T135518A137244846. Retrieved 11 December 2024.
- ^ a b Winfield, Ian J; Fletcher, Janice M; James, J Ben (March 2013). "Llyn Arenig Fawr Gwyniad Survey 2012" (PDF). Countryside Council for Wales. Retrieved 18 April 2014.
- ^ "Gwyniad". BBC Wales Nature & Outdoors. 2014.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Coregonus pennantii". FishBase. December 2009 version.
- ^ "Conservation". Snowdonia National Park. Archived from the original on 19 April 2014. Retrieved 19 April 2014.
- ^ Etheridge, E.C.; C. E. Adams; C. W. Bean; N. C. Durie; A. R. D. Gowans; C. Harrod; A. A. Lyle; P. S. Maitland; I. J. Winfield (2012). "Are phenotypic traits useful for differentiating among a priori Coregonus taxa?". Journal of Fish Biology. 80: 387–407. doi:10.1111/j.1095-8649.2011.03189.x.
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