RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Main Lew

Largest measured stone loach: 12.8 cm

The largest stone loach measured in Environment Agency surveys of the River Main Lew was 12.8 cm, recorded at Lee on 22 September 2017.

Across 197 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 River Main Lew.

See stone loach records across England →

Most recent observation11 August 2025Lew Mill · 1 fish
Largest measured stone loach
12.8 cm
Median length
8.4 cm
Fish measured
197
Survey locations
6

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
12.8 cm22 Sept 2017Lee151895
12.4 cm18 Aug 2021Stone160541
12.1 cm10 Aug 2017Stone151242
11.6 cm22 Jul 2022Stone161504
11.6 cm10 Jul 2019Stone155472
11.5 cm18 Aug 2021Stone160541
11.5 cm4 Aug 2016Stone148850
11.4 cm4 Aug 2015Stone145751
11.3 cm9 Aug 2018Lew Mill153398
11.3 cm4 Aug 2016Stone148850

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
Lew Mill31 Jul 199311 Aug 202522
Stone2 Aug 19935 Aug 202516
Lee17 Aug 198429 Jul 202420
Upstream Lee21 Aug 202321 Aug 20231
Lew Wood26 Aug 199311 Sept 20013
Foxcombe13 Aug 19844 Aug 19994

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

1984–2025

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 197 measured fish were spread across different length ranges.

Smallest
2.2 cm
Lower quarter
7.2 cm
Median
8.4 cm
Upper quarter
9.5 cm
Largest
12.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Lew

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

Brown / sea trout Bullhead Atlantic salmon European eel Minnow Grayling

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 →