Stone loach · Barbatula barbatula

Stone loach in the Old West River

Largest measured stone loach: 8.8 cm

The largest stone loach measured in Environment Agency surveys of the Old West River was 8.8 cm, recorded at Hermitage Marina on 13 November 1996.

Across 11 measured stone loach, the median measured length was 7.3 cm.

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

See stone loach records across England →

Most recent observation6 September 2023Flat Bridge Farm · 1 fish

Largest measured stone loach: 8.8 cm
Median length: 7.3 cm
Fish measured: 11
Survey locations: 5

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
8.8 cm	13 Nov 1996	Hermitage Marina	29990
8.3 cm	18 Nov 1996	Ewell Fen	29993
8.3 cm	15 Nov 1996	Flat Bridge Farm	29992
7.8 cm	6 Sept 2023	Flat Bridge Farm	163295
7.8 cm	14 Nov 1996	Weathersome Common	29991
7.3 cm	18 Nov 1996	Ewell Fen	29993
6.3 cm	13 Nov 1996	Hermitage Marina	29990
6.2 cm	13 Sept 2017	Smithy Fen Farm	151646
5.3 cm	17 Oct 2000	Smithy Fen Farm	30799
5.2 cm	13 Sept 2017	Smithy Fen Farm	151646

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
Flat Bridge Farm	15 Nov 1996	6 Sept 2023	3
Smithy Fen Farm	17 Oct 2000	13 Sept 2017	2
Weathersome Common	14 Nov 1996	10 Oct 2006	2
Ewell Fen	18 Nov 1996	18 Nov 1996	1
Hermitage Marina	13 Nov 1996	13 Nov 1996	1

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

1996–2023

Survey records by year

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

496

097

098

099

100

001

002

003

004

005

106

007

008

109

010

011

012

013

014

015

016

117

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 11 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 5.8 cm
Median: 7.3 cm
Upper quarter: 8.1 cm
Largest: 8.8 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Old West River

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

Perch Roach Pike Bitterling Tench Bleak

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 →