GRT logo
white banner

Current Projects


Studying the grayling population in the River Seven


River Seven @ SinningtonA small team of Sinnington Angling Club members (Yorkshire Derwent) are involved in an important study of the health and numbers of grayling in their club waters, by supplying scales of caught fish to The Grayling Research Trust for assessment. Each team member (Angler) has been supplied with a ‘scales kit’ for removing three scales from each fish, with details including the length and weight of fish, to the East Yorkshire Rivers Trust (EYRT) who is heading the SAC team. The scales are easily removed from the fish and the missing ones will quickly regenerate; the fish are handled gently and each is carefully returned to the water. The project also has the interest of The Grayling Society, the Environment Agency.  



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.