RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Wear

Largest measured stone loach: 25 cm

The largest stone loach measured in Environment Agency surveys of the River Wear was 25 cm, recorded at Cong Burn at Chester-Le-Street - Eel Site on 10 August 2009.

Across 77 measured stone loach, the median measured length was 8 cm.

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

See stone loach records across England →

Most recent observation13 June 2025Cong Burn at Chester-Le-Street - Eel Site
Largest measured stone loach
25 cm
Median length
8 cm
Fish measured
77
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.

LengthSurvey dateSurvey locationSurvey ID
25 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
13.3 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
12.3 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
12.2 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
12 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
12 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
11.8 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
11.7 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
11.7 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104
11.6 cm10 Aug 2009Cong Burn at Chester-Le-Street - Eel Site121104

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 surveyedFirst recordedLast recordedVisits finding stone loach
Cong Burn at Chester-Le-Street - Eel Site10 Aug 200913 Jun 20253
Old Durham Beck at Shincliffe - Eel Site12 Aug 200912 Jun 20255
River Browney at Malton Picnic Site - Eel Site21 Sept 200911 Jun 20252
River Browney at Bear Park- Eel site7 Jun 201911 Jun 20253
River Gaunless at Auckland Castle - Eel Site13 Sept 200910 Jun 20254
Linburn Beck at Witton Castle - Eel Site11 Aug 200910 Jun 20254
Houselop Beck at Bradley - Eel Site11 Aug 200913 Jun 20233
Lumley Park Burn at Lumley Castle - Eel Site13 Sept 200918 Jun 20193
River Browney at Holiday Park - Eel Site29 Sept 20093 Sept 20112

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

2009–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 77 measured fish were spread across different length ranges.

Smallest
5.7 cm
Lower quarter
7.3 cm
Median
8 cm
Upper quarter
9.2 cm
Largest
25 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wear

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

European eel Brown / sea trout Atlantic salmon Bullhead Minnow 3-spined stickleback

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 →