Grayling · Thymallus thymallus

Grayling in the River Meon

Largest measured grayling: 38.5 cm

The largest grayling measured in Environment Agency surveys of the River Meon was 38.5 cm, recorded at Mislingford Beat on 14 August 2014.

Across 9 measured grayling, the median measured length was 28 cm.

Surveyors recorded weights for 3 grayling. The median was 0.3 oz (0.009 kg) and the largest recorded weight was 9.2 oz (0.262 kg).

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

See grayling records across England →

Most recent observation1 August 2023Upstream of Silver Springs · 1 fish

Largest measured grayling: 38.5 cm
Median length: 28 cm
Fish measured: 9
Survey locations: 5

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
38.5 cm	14 Aug 2014	Mislingford Beat	142243
34.5 cm	1 Aug 2023	Upstream of Silver Springs	162832
34.2 cm	12 Jul 2011	Wickham gardens	126971
28.2 cm	16 Sept 2001	Anjou Bridge	24583
28 cm	8 Aug 2007	Behind Silver Springs	107950
22.2 cm	8 Aug 2007	Upstream of Silver Springs	107942
21.9 cm	8 Aug 2007	Upstream of Silver Springs	107942
9 cm	16 Sept 2001	Anjou Bridge	24583
7.9 cm	16 Sept 2001	Anjou Bridge	24583

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
Upstream of Silver Springs	8 Aug 2007	1 Aug 2023	2
Mislingford Beat	14 Aug 2014	14 Aug 2014	1
Wickham gardens	12 Jul 2011	12 Jul 2011	1
Behind Silver Springs	8 Aug 2007	8 Aug 2007	1
Anjou Bridge	16 Sept 2001	16 Sept 2001	1

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

2001–2023

Survey records by year

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

101

002

003

004

005

006

207

008

009

010

111

012

013

114

015

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 9 measured fish were spread across different length ranges.

Smallest: 7.9 cm
Lower quarter: 21.9 cm
Median: 28 cm
Upper quarter: 34.2 cm
Largest: 38.5 cm

0–99 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 grayling. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.007 kg)
Lower quarter: 0.3 oz (0.008 kg)
Median: 0.3 oz (0.009 kg)
Upper quarter: 4.8 oz (0.1355 kg)
Heaviest: 9.2 oz (0.262 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Meon

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

Brown / sea trout European eel Bullhead Minnow Chub Brook lamprey

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 →