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Grayling Spawning Survey

The GRT has launched a project to record sightings and the timing of grayling spawning; i.e. actually laying eggs, rather than just pre-spawning movements onto spawning areas, or pre-spawning behaviour, which are also of interest, but take place over a longer time. This study is being undertaken because there is little information on the timing of grayling spawning and how this varies across the country/continent. It is hoped that the findings from this study will be used to inform the planning of in-stream engineering works and help protect important spawning habitat. If you are out on the river bank and notice grayling spawning, please let the GRT know: the River, Date, Location (NGR, or marked up map, if possible but certainly at least nearest town/village) and any additional observations. To make reporting sightings easy, a short submission form is available below or simply tweet (@GRT_Updates or #graylingspawning). Results will be mapped and displayed on the GRT website as they come in, and a full report will be presented at the AGM in Pickering, so you can compare rivers.

To help people recognise when grayling are spawning, a video is available to watch on the GRT website under About Grayling (Spawning).

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Latest News

New DNA study needs Anglers help!

In 2008/09, anglers collected over 1100 grayling adipose fin clip samples from 27 catchments the UK. The samples were used to extract DNA and for the first time, help us understand the genetic make up and diversity of grayling across the UK. This information was later used to influence stocking of UK grayling (Summary).

We now have another genetic study and need new samples. However, instead of fin clips we will be using swabs (cotton buds) to collect DNA from the mouth and gill cavity. The sampling invloves taking a swab of the mouth and gills of fish, an estimate of fork length and condition of the fish and a record of the date and geographic location. We need a minimum of 30 samples per catchment. If you feel you are able to contribute samples to the project, please contact us. Further details.

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