What is "gwyniad"

Gwiniad \Gwin"i*ad\ (gw[i^]n"[i^]*[a^]d), n. [W. gwyniad a whiting, the name of various fishes, fr. gwyn white.] (Zo["o]l.) A fish ( Coregonus ferus) of North Wales and Northern Europe, allied to the lake whitefish; -- called also powan, and schelly. [Written also gwyniad, guiniad, gurniad.]

Powan \Pow"an\, Powen \Pow"en\, n. (Zo["o]l.) A small British lake whitefish ( Coregonus clupeoides, or Coregonus ferus); -- called also gwyniad and lake herring.

n. A freshwater fish native to Bala Lake in Wales.

The gwyniad (Coregonus pennantii) is a freshwater whitefish native to Bala Lake 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.

The taxonomy of the genus Coregonus is disputed; some authorities assign the gwyniad to the common whitefish (Coregonus lavaretus) complex, whereas FishBase and the IUCN list it as a distinct species, C. pennantii.