Grayling · Thymallus thymallus

Grayling in the Great Eau Riffles

Largest measured grayling: 24.3 cm

The largest grayling measured in Environment Agency surveys of the Great Eau Riffles was 24.3 cm, recorded at No Name - LIN21X on 26 August 1994.

Across 57 measured grayling, the median measured length was 21.1 cm.

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

See grayling records across England →

Most recent observation27 September 1995No Name - LIN20X · 3 fish

Largest measured grayling: 24.3 cm
Median length: 21.1 cm
Fish measured: 57
Survey locations: 9

Individual EA measurements

Largest measured grayling

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

Length	Survey date	Survey location	Survey ID
24.3 cm	26 Aug 1994	No Name - LIN21X	69569
24.3 cm	26 Aug 1994	No Name - LIN22X	69570
23.6 cm	26 Aug 1994	No Name - LIN22X	69570
23.5 cm	26 Aug 1994	No Name - LIN23X	69571
23.4 cm	26 Aug 1994	No Name - LIN21X	69569
23.4 cm	24 Aug 1994	No Name - LIN28X	69589
23.1 cm	26 Aug 1994	No Name - LIN22X	69570
23.1 cm	26 Aug 1994	No Name - LIN22X	69570
23 cm	26 Aug 1994	No Name - LIN22X	69570
22.9 cm	26 Aug 1994	No Name - LIN21X	69569

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 surveyed	First recorded	Last recorded	Visits finding grayling
No Name - LIN20X	26 Aug 1994	27 Sept 1995	2
No Name - LIN25X	26 Sept 1995	26 Sept 1995	1
No Name - LIN24X	25 Aug 1994	26 Sept 1995	2
No Name - LIN29X	21 Sept 1995	21 Sept 1995	1
No Name - LIN23X	26 Aug 1994	26 Aug 1994	1
No Name - LIN22X	26 Aug 1994	26 Aug 1994	1
No Name - LIN21X	26 Aug 1994	26 Aug 1994	1
No Name - LIN28X	24 Aug 1994	24 Aug 1994	1
No Name - LIN27X	24 Aug 1994	24 Aug 1994	1

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

1994–1995

Survey records by year

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

794

495

Fish measured by surveyors

Measured length distribution

See how the 57 measured fish were spread across different length ranges.

Smallest: 11.4 cm
Lower quarter: 14.3 cm
Median: 21.1 cm
Upper quarter: 22.4 cm
Largest: 24.3 cm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Great Eau Riffles

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

Brown / sea trout Rainbow trout Dace Roach

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 →