RiverFish

Grayling · Thymallus thymallus

Grayling in the River Main Deer

Largest measured grayling: 6.5 cm

The largest grayling measured in Environment Agency surveys of the River Main Deer was 6.5 cm, recorded at Forda Mill on 29 June 2004.

Across 19 measured grayling, the median measured length was 4.8 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 Main Deer.

See grayling records across England →

Most recent observation10 June 2022Deer Bridge · 1 fish
Largest measured grayling
6.5 cm
Median length
4.8 cm
Fish measured
19
Survey locations
3

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
6.5 cm29 Jun 2004Forda Mill81403
6.2 cm21 Jun 2010Forda Mill122472
6 cm21 Jun 2010Forda Mill122472
5.6 cm10 Jun 2022Deer Bridge161955
5.3 cm8 Jun 2016Deer Bridge148205
5 cm8 Jun 2016Deer Bridge148205
5 cm8 Jun 2016Deer Bridge148205
5 cm8 Jun 2016Deer Bridge148205
4.9 cm8 Jun 2016Deer Bridge148205
4.8 cm8 Jun 2016Deer Bridge148205

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
Deer Bridge8 Jun 201610 Jun 20222
Forda Mill20 Jun 198421 Jun 20103
Forda Art Spawning Bed22 May 199522 May 19951

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

1984–2022

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 19 measured fish were spread across different length ranges.

Smallest
3.7 cm
Lower quarter
4.3 cm
Median
4.8 cm
Upper quarter
5.2 cm
Largest
6.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Deer

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

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

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 →