RiverFish

Grayling · Thymallus thymallus

Grayling in the River Nadder

Largest measured grayling: 37.4 cm

The largest grayling measured in Environment Agency surveys of the River Nadder was 37.4 cm, recorded at d/s Horseshoe Bridge on 12 October 2011.

Across 533 measured grayling, the median measured length was 21.2 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 Nadder.

See grayling records across England →

Most recent observation30 July 2025Catherines Ford · 6 fish
Largest measured grayling
37.4 cm
Median length
21.2 cm
Fish measured
533
Survey locations
16

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
37.4 cm12 Oct 2011d/s Horseshoe Bridge128769
36.8 cm19 Oct 2011Railway Bridge128841
34.3 cm19 Sept 2024u/s Ugford Hatches167110
34 cm12 Oct 2011d/s Horseshoe Bridge128769
33.9 cm30 Sept 2014u/s Ugford Hatches143402
33.2 cm17 Sept 2014Upstream Hurdcott Middle Bridge143546
33 cm12 Oct 2011d/s Horseshoe Bridge128769
32.8 cm15 Sept 2022Burcombe Weir161435
32.5 cm17 Sept 2014Upstream Hurdcott Middle Bridge143546
32.2 cm19 Oct 2011Railway Bridge128841

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
Catherines Ford12 Oct 200430 Jul 202511
Burcombe Weir27 Sept 201126 Jun 20259
u/s Ugford Hatches20 Sept 201119 Sept 20245
d/s Horseshoe Bridge12 Oct 200419 Oct 20225
d/s Harnham Mill23 Oct 201217 Aug 20212
Priory Farm Pool28 Sept 200418 Sept 20146
Upstream Hurdcott Middle Bridge17 Sept 201417 Sept 20141
Panters bridge19 Oct 201123 Oct 20122
Barford27 Sept 201123 Oct 20122
d/s 14 Hatches16 Sept 201115 Oct 20122
Railway Bridge19 Oct 201119 Oct 20111
d/s Catherines ford17 Oct 201117 Oct 20111
Dinton12 Oct 201112 Oct 20111
Hurdcott Middle Bridge9 Sept 20045 Oct 20113
Bull Bridge16 Sept 201116 Sept 20111
Burcombe Bridge30 Sept 200430 Sept 20041

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

2004–2025

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 533 measured fish were spread across different length ranges.

Smallest
8 cm
Lower quarter
13.2 cm
Median
21.2 cm
Upper quarter
24.9 cm
Largest
37.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Nadder

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

Brown / sea trout Bullhead Minnow Stone loach Atlantic salmon European eel

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 →