Grayling · Thymallus thymallus

Grayling in the Leigh Brook

Largest measured grayling: 21.6 cm

The largest grayling measured in Environment Agency surveys of the Leigh Brook was 21.6 cm, recorded at Hopton Court on 30 June 2010.

Across 5 measured grayling, the median measured length was 17.5 cm.

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

See grayling records across England →

Most recent observation4 June 2024Hopton Court · 1 fish

Largest measured grayling: 21.6 cm
Median length: 17.5 cm
Fish measured: 5
Survey locations: 1

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
21.6 cm	30 Jun 2010	Hopton Court	122718
18.6 cm	8 Jun 2021	Hopton Court	159870
17.5 cm	13 Jun 2018	Hopton Court	152730
15.5 cm	8 Jun 2016	Hopton Court	148165
10.5 cm	4 Jun 2024	Hopton Court	165241

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
Hopton Court	30 Jun 2010	4 Jun 2024	5

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

2010–2024

Survey records by year

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

110

011

012

013

014

015

116

017

118

019

020

121

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 5 measured fish were spread across different length ranges.

Smallest: 10.5 cm
Lower quarter: 15.5 cm
Median: 17.5 cm
Upper quarter: 18.6 cm
Largest: 21.6 cm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Leigh Brook

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 →