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About Grayling

There are 6 commonly known species of grayling; European grayling (), Arctic grayling (), Baikal grayling (), Kosogol grayling (), Mongolian grayling () and Amur grayling (), see map below. However, these can be subdivided further into 14 species; for some grayling species very little information is known and they currently do not have a common name:


Thymallus arcticus (Pallas, 1776) – Arctic grayling

Thymallus baicalensis (Dybowski, 1874 ) – Baikal black grayling

Thymallus brevipinnis (Svetovidov (ru), 1931)

Thymallus brevirostrisMongolian grayling

Thymallus burejensis (Antonov, 2004)

Thymallus grubii flavomaculatus (Knizhin, Antonov & Weiss, 2006 ) – Yellow-spotted grayling

Thymallus grubii grubii (Svetovidov (ru), 1931) – Amur grayling

Thymallus mertensii – (Valenciennes, 1848)

Thymallus nigrescens (Dorogostaisky, 1923 ) – Kosogol grayling

Thymallus pallasii (Valenciennes, 1848 ) – East Siberian grayling

Thymallus svetovidovi (Svetovidov, 1931) – Upper Yenisei grayling

Thymallus thymallus (Linnaeus, 1758) – European grayling

Thymallus tugarinae (Knizhin, Antonov, Safronov & Weiss, 2007 ) – Lower Amur Grayling

Thymallus yaluensis (T. Mori, 1928)


The presence of an adipose fin taxonomically groups grayling into the Salmonidae family, more specifically a sub-family called Thymallinae, with only one genus. However, this website mainly concentrates on the European grayling.


 grayling distribution




GS Symposium Speakers

GRT Funded MSc, PhD Studies

Two degree project interim reports were among presentations at the most recent Grayling Society symposium. Both studies are currently funded by the GRT and both operate on a premise that alongside the intrinsic value of grayling as a game fish, their survival challenges provide early indication of problems that are or will likely become problems for other salmonids.


Stephen Gregory (Game and Wildlife Conservation Trust) described an MSc study plan for statistical mining of the existing Wylye Study data, questioning the effect of extreme climate events on grayling population dynamics. He emphasized that the GWCT now leads all processing aspects of the 30-year Wylye Grayling Study (WGS) dataset - the longest and most complete in Europe...possibly in the world.


Vanessa Huml's (Manchester Metropolitan University) PhD study is titled Assessing adaptive genetic variation for effective management and conservation of European grayling. Read her description of planned work, noting reference to new sequencing technology and reference to the four U.K. genetically distinct groups identified in the earlier genetic census funded by the GRT.


The two studies both look at grayling population health/stability under extant environmental conditions but the doctoral work extends inquiry to genetic proclivity for survival ('evolvability').


Both investigators will submit detailed results for publication here after review in their respective peer literature.