Gwyniad

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Gwyniad
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Subfamily: Coregoninae
Genus: Coregonus
Species: C. pennantii
Binomial name
Coregonus pennantii
Valenciennes, 1848

The gwyniad (Coregonus pennantii) is a freshwater whitefish native to Bala Lake (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 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) complex,[2][5] whereas FishBase and the IUCN list it as a distinct species, C. pennantii.[1][4]

See also[edit]

References[edit]

  1. ^ a b c Freyhof, J. & Kottelat, M. (2008). Coregonus pennantii. In: IUCN Red List of Threatened Species. Version 2010.1. <www.iucnredlist.org>. Downloaded on 17 April 2010.
  2. ^ a b Winfield, Ian J; Fletcher, Janice M; James, J Ben (March 2013). "Llyn Arenig Fawr Gwyniad Survey 2012". Countryside Council for Wales. Retrieved 18 April 2014. 
  3. ^ Gwyniad BBC. Wales Nature & Outdoors (read April 2010)
  4. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2009). "Coregonus pennantii" in FishBase. December 2009 version.
  5. ^ "Conservation". Snowdonia National Park. Retrieved 19 April 2014. 

External links[edit]