RiverFish

Grayling · Thymallus thymallus

Grayling in the River Manifold

Largest measured grayling: 40.5 cm

The largest grayling measured in Environment Agency surveys of the River Manifold was 40.5 cm, recorded at Brund on 9 November 2004.

Across 156 measured grayling, the median measured length was 15.9 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Manifold.

See grayling records across England →

Most recent observation25 September 2025Brund · 1 fish
Largest measured grayling
40.5 cm
Median length
15.9 cm
Fish measured
156
Survey locations
8

Individual EA measurements

Largest measured grayling

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
40.5 cm9 Nov 2004Brund82994
40.2 cm22 Oct 2019Wetton Mill155812
40 cm24 Sept 2015Swainsley, Dovecote Pool146930
39.5 cm22 Oct 2019Wetton Mill155812
39.2 cm6 Oct 2004Wetton Mill82691
38.7 cm16 Oct 2003Swainsley, Willow Pool77603
38.3 cm1 Oct 2003Wetton Mill77218
38.1 cm13 Apr 2010Swainsley, Dovecote Pool121809
38 cm2 Oct 2014Ilam143292
37.8 cm2 Oct 2014Ilam143292

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where grayling were found

Each point marks a survey location with at least one grayling record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding grayling
Brund9 Nov 200425 Sept 20254
Wetton Mill9 Oct 200222 Oct 201910
Swainsley, Dovecote Pool4 Oct 200510 Oct 20178
Ilam2 Oct 20142 Oct 20141
Swainsley, Willow Pool16 Oct 200316 Oct 20031
Downstream Ecton Bridge, Swainsley4 Aug 19984 Aug 19981
Upstream Wetton Mill4 Feb 19984 Feb 19981
Hulme End3 Feb 19983 Feb 19981

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1998–2025

Survey records by year

Each bar shows how many survey visits recorded grayling that year.

Fish measured by surveyors

Measured length distribution

See how the 156 measured fish were spread across different length ranges.

Smallest
6.8 cm
Lower quarter
12.7 cm
Median
16 cm
Upper quarter
26 cm
Largest
40.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Manifold

Compare other species with enough survey and measurement data for a detailed page.

Brown / sea trout Bullhead Stone loach Minnow Brook lamprey

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →