Stone loach · Barbatula barbatula

Stone loach in the Chew Brook

Largest measured stone loach: 13.1 cm

The largest stone loach measured in Environment Agency surveys of the Chew Brook was 13.1 cm, recorded at TACH01a on 7 May 2008.

Across 4 measured stone loach, the median measured length was 12.1 cm.

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

See stone loach records across England →

Most recent observation22 May 2025Tach01

Largest measured stone loach: 13.1 cm
Median length: 12.1 cm
Fish measured: 4
Survey locations: 3

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
13.1 cm	7 May 2008	TACH01a	111486
12.5 cm	11 Oct 2007	Tach02	108797
11.7 cm	7 May 2008	TACH01a	111486
11.5 cm	7 May 2008	TACH01a	111486

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
Tach02	11 Oct 2007	22 May 2025	7
Tach01	16 Sept 2008	22 May 2025	4
TACH01a	7 May 2008	12 Oct 2010	4

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

2007–2025

Survey records by year

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

107

308

309

610

011

012

013

014

015

016

017

018

019

020

021

022

023

024

225

Fish measured by surveyors

Measured length distribution

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

Smallest: 11.5 cm
Lower quarter: 11.7 cm
Median: 12.1 cm
Upper quarter: 12.7 cm
Largest: 13.1 cm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Chew Brook

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

Brown / sea trout

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 →