Gwyniad
The gwyniad (Coregonus pennantii) is a freshwater whitefish native to Bala Lake (Llyn Tegid) in northern Wales.
| Gwyniad | |
|---|---|
 | |
| Individual caught in 1904 | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Family: | |
| Subfamily: | |
| Genus: | |
| Species: | C. pennantii |
| Binomial name | |
| Coregonus pennantii Valenciennes, 1848 | |
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 lake, 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]
References
- Freyhof, J. & Kottelat, M. (2008). Coregonus pennantii. In: IUCN Red List of Threatened Species. Version 2010.1. Downloaded on 14 November 2017.
- 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 (read April 2010)
- Froese, Rainer and Pauly, Daniel, eds. (2009). "Coregonus pennantii" in 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; and 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
External links
- Coregonus pennantii. Integrated Taxonomic Information System (ITIS).
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.