Stone loach · Barbatula barbatula

Stone loach in the Main River Chew

Largest measured stone loach: 12.1 cm

The largest stone loach measured in Environment Agency surveys of the Main River Chew was 12.1 cm, recorded at Stanton Drew (Te) on 21 August 2012.

Across 4 measured stone loach, the median measured length was 8.4 cm.

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

See stone loach records across England →

Most recent observation18 July 2023Chewton Keynsham

Largest measured stone loach: 12.1 cm
Median length: 8.4 cm
Fish measured: 4
Survey locations: 9

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
12.1 cm	21 Aug 2012	Stanton Drew (Te)	133062
9.4 cm	21 Aug 2012	Stanton Drew (Te)	133062
7.5 cm	5 Jul 2011	Chew Magna	127361
7 cm	23 Jul 2014	Stanton Drew (Te)	141877

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
Chewton Keynsham	4 Sept 2007	18 Jul 2023	3
Stanton Drew (Te)	31 Aug 2005	11 Jul 2023	8
Pensford (Te)	15 May 2002	6 Jul 2023	5
Compton Dando (Te)	20 Jun 2003	27 Jun 2023	6
Keynsham Park (Te)	3 Sept 2003	18 Jul 2019	6
Chew Magna	5 Jul 2011	5 Jul 2011	1
Shrowl Bridge (Te)	20 Jul 2004	20 Jul 2004	1
Downstream Chew Valley Lake (Te)	8 Jul 2003	13 Jul 2004	2
Byemills	5 Sept 2002	5 Sept 2002	1

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

2002–2023

Survey records by year

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

202

303

404

205

006

307

108

109

010

111

112

213

114

015

416

017

018

419

020

021

022

423

Fish measured by surveyors

Measured length distribution

See how the 4 measured fish were spread across different length ranges.

Smallest: 7 cm
Lower quarter: 7.4 cm
Median: 8.5 cm
Upper quarter: 10.1 cm
Largest: 12.1 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Chew

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

Bullhead Roach Minnow Brown / sea trout European eel Gudgeon

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 →