RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Main Molland Yeo

Largest measured stone loach: 12.6 cm

The largest stone loach measured in Environment Agency surveys of the River Main Molland Yeo was 12.6 cm, recorded at Mornacott (Te) on 23 August 2016.

Across 25 measured stone loach, the median measured length was 8.9 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 Main Molland Yeo.

See stone loach records across England →

Most recent observation25 July 2025Westbridge Stables (Sp) · 3 fish
Largest measured stone loach
12.6 cm
Median length
8.9 cm
Fish measured
25
Survey locations
10

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
12.6 cm23 Aug 2016Mornacott (Te)149085
11.9 cm23 Aug 2016Mornacott (Te)149085
10 cm18 Jul 2018Touts Bridge (Sp)152915
9.9 cm18 Jul 2018Touts Bridge (Sp)152915
9.9 cm23 Aug 2016Mornacott (Te)149085
9.7 cm12 Jul 2018Mornacott (Te)152907
9.6 cm12 Jul 2018Mornacott (Te)152907
9.3 cm12 Jul 2018Mornacott (Te)152907
9.3 cm12 Jul 2018Mornacott (Te)152907
9.1 cm23 Aug 2016Mornacott (Te)149085

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
Westbridge Stables (Sp)20 Aug 199625 Jul 20253
Yeo Mill (Sp)20 Aug 199623 Jul 20252
Bottreaux Mill (Sp)23 Aug 199623 Jul 20254
Mornacott (Te)14 Aug 200217 Jul 202512
Westbridge Stables (5 min)25 Sept 202325 Sept 20231
Grilstone (5 min)19 Sept 202319 Sept 20231
Reach Farm (5 min)16 Sept 202316 Sept 20231
Yeo Farm (5 min)16 Aug 202316 Aug 20231
Bish Mill (5 min)6 Aug 199616 Aug 20236
Touts Bridge (Sp)23 Aug 199918 Jul 20183

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

1996–2025

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 25 measured fish were spread across different length ranges.

Smallest
4.1 cm
Lower quarter
7.8 cm
Median
8.9 cm
Upper quarter
9.6 cm
Largest
12.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Molland Yeo

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

Brown / sea trout Bullhead Atlantic salmon Minnow European eel

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 →