RiverFish

Grayling · Thymallus thymallus

Grayling in the River Holbeck

Largest measured grayling: 29.9 cm

The largest grayling measured in Environment Agency surveys of the River Holbeck was 29.9 cm, recorded at Holbeck, South of East Ness DERBT91 on 13 September 2002.

Across 51 measured grayling, the median measured length was 20.6 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 Holbeck.

See grayling records across England →

Most recent observation3 September 2024Holbeck, South of East Ness DERBT91 · 1 fish
Largest measured grayling
29.9 cm
Median length
20.6 cm
Fish measured
51
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
29.9 cm13 Sept 2002Holbeck, South of East Ness DERBT9172205
29.2 cm10 Sept 1997Holbeck at East Gilling110612
28.7 cm23 Sept 2012Holbeck, South of East Ness DERBT91133768
26.9 cm23 Sept 2012Holbeck at Stonegrave133767
24.7 cm10 Sept 1997Holbeck at East Gilling110612
24.4 cm13 Sept 2002Holbeck, South of East Ness DERBT9172205
24 cm23 Sept 2012Holbeck at Stonegrave133767
23.4 cm12 Sept 1997Holbeck, South of East Ness DERBT91109960
23.2 cm26 Sept 2001Holbeck, South of East Ness DERBT9125568
23.1 cm15 Sept 2003Holbeck, South of East Ness DERBT91130234

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
Holbeck, South of East Ness DERBT9112 Sept 19973 Sept 202413
Holbeck at Stonegrave23 Sept 201223 Sept 20121
Holbeck at East Gilling10 Sept 199723 Sept 20122

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

1997–2024

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 51 measured fish were spread across different length ranges.

Smallest
6.3 cm
Lower quarter
12.3 cm
Median
20.6 cm
Upper quarter
22.4 cm
Largest
29.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Holbeck

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

Brown / sea trout Minnow Bullhead Stone loach 3-spined stickleback Dace

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 →