RiverFish

Grayling · Thymallus thymallus

Grayling in the River Frome

Largest measured grayling: 32.4 cm

The largest grayling measured in Environment Agency surveys of the River Frome was 32.4 cm, recorded at Mill Stream at East Stoke on 19 July 2017.

Across 88 measured grayling, the median measured length was 12 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 Frome.

See grayling records across England →

Most recent observation21 July 2023Mill Stream at East Stoke · 3 fish
Largest measured grayling
32.4 cm
Median length
12 cm
Fish measured
88
Survey locations
2

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
32.4 cm19 Jul 2017Mill Stream at East Stoke151003
31.2 cm19 Jul 2017Mill Stream at East Stoke151003
31 cm21 Jul 2023Mill Stream at East Stoke162754
27.7 cm19 Jul 2017Mill Stream at East Stoke151003
27.5 cm18 Oct 2002Carrier at West Stafford73027
26.3 cm18 Oct 2002Carrier at West Stafford73027
25 cm18 Oct 2002Carrier at West Stafford73027
24.2 cm19 Jul 2017Mill Stream at East Stoke151003
24.2 cm18 Oct 2002Carrier at West Stafford73027
23.4 cm14 Sept 2005Mill Stream at East Stoke86471

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
Mill Stream at East Stoke18 Oct 200421 Jul 202311
Carrier at West Stafford18 Oct 200218 Oct 20021

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

2002–2023

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 88 measured fish were spread across different length ranges.

Smallest
7.8 cm
Lower quarter
11.2 cm
Median
12 cm
Upper quarter
14.3 cm
Largest
32.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Frome

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

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

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 →