RiverFish

Stone loach · Barbatula barbatula

Stone loach in the Old River Lea

Largest measured stone loach: 11.1 cm

The largest stone loach measured in Environment Agency surveys of the Old River Lea was 11.1 cm, recorded at Cornmill Meadows 3 (Mile Nursery) on 13 May 2015.

Across 7 measured stone loach, the median measured length was 7.9 cm.

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

See stone loach records across England →

Most recent observation21 May 2026Cornmill Meadows 3 (Mile Nursery)
Largest measured stone loach
11.1 cm
Median length
7.9 cm
Fish measured
7
Survey locations
1

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
11.1 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661
9.3 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661
8.1 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661
7.9 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661
7.7 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661
6.9 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661
6.7 cm13 May 2015Cornmill Meadows 3 (Mile Nursery)144661

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
Cornmill Meadows 3 (Mile Nursery)1 May 200721 May 202610

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

2007–2026

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 7 measured fish were spread across different length ranges.

Smallest
6.7 cm
Lower quarter
7.3 cm
Median
7.9 cm
Upper quarter
8.7 cm
Largest
11.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Old River Lea

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

Perch Roach Chub Pike Tench Minnow

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 →