Stone loach · Barbatula barbatula

Stone loach in the River East Stour

Largest measured stone loach: 12 cm

The largest stone loach measured in Environment Agency surveys of the River East Stour was 12 cm, recorded at Mersham on 20 June 2024.

Across 81 measured stone loach, the median measured length was 8.9 cm.

Surveyors recorded weights for 19 stone loach. The median was 0.3 oz (0.008 kg) and the largest recorded weight was 0.4 oz (0.012 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 East Stour.

See stone loach records across England →

Most recent observation20 June 2024Mersham · 4 fish

Largest measured stone loach: 12 cm
Median length: 8.9 cm
Fish measured: 81
Survey locations: 4

Individual EA measurements

Largest measured stone loach

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
12 cm	20 Jun 2024	Mersham	165239
11 cm	24 Apr 2001	Sellindge	22345
10.9 cm	24 Apr 2001	Sellindge	22345
10.5 cm	24 Apr 2001	Sellindge	22345
10.4 cm	24 Apr 2001	Sellindge	22345
10.4 cm	24 Apr 2001	Sellindge	22345
10.3 cm	24 Apr 2001	Sellindge	22345
10.2 cm	12 Aug 2013	Cheesman's Green	137991
10.2 cm	10 Sept 2002	Sellindge	72675
10.2 cm	24 Apr 2001	Sellindge	22345

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where stone loach were found

Each point marks a survey location with at least one stone loach 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 stone loach
Mersham	19 Jun 2012	20 Jun 2024	3
Sellindge	24 Apr 2001	11 Jun 2024	7
Cheesman's Green	12 Aug 2013	12 Aug 2013	1
Evegate Mill	11 Oct 2002	11 Oct 2002	1

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

2001–2024

Survey records by year

Each bar shows how many survey visits recorded stone loach that year.

101

202

103

004

005

106

007

008

009

010

011

212

113

014

015

016

017

218

019

020

021

022

023

224

Fish measured by surveyors

Measured length distribution

See how the 81 measured fish were spread across different length ranges.

Smallest: 5.3 cm
Lower quarter: 7.9 cm
Median: 8.9 cm
Upper quarter: 9.8 cm
Largest: 12 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 19 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.004 kg)
Lower quarter: 0.2 oz (0.006 kg)
Median: 0.3 oz (0.008 kg)
Upper quarter: 0.3 oz (0.008 kg)
Heaviest: 0.4 oz (0.012 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 East Stour

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

European eel Bullhead Gudgeon Minnow Perch 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 →