RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Wey South

Largest measured stone loach: 12 cm

The largest stone loach measured in Environment Agency surveys of the River Wey South was 12 cm, recorded at Hatch Farm on 23 October 2024.

Across 60 measured stone loach, the median measured length was 9.6 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 Wey South.

See stone loach records across England →

Most recent observation23 October 2024Hatch Farm · 42 fish
Largest measured stone loach
12 cm
Median length
9.6 cm
Fish measured
60
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 cm23 Oct 2024Hatch Farm168011
11.9 cm23 Oct 2024Hatch Farm168011
11.4 cm23 Oct 2024Hatch Farm168011
11.4 cm23 Oct 2024Hatch Farm168011
11.2 cm23 Oct 2024Hatch Farm168011
11.1 cm23 Oct 2024Hatch Farm168011
11 cm23 Oct 2024Hatch Farm168011
10.6 cm23 Oct 2024Hatch Farm168011
10.4 cm23 Oct 2024Hatch Farm168011
10.3 cm23 Oct 2024Hatch Farm168011

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
Hatch Farm26 Oct 199923 Oct 202415
Dockenfield22 May 200328 Jun 20239
Mellow Farm17 Jun 201417 Jun 20141
Headley Wood Farm18 Nov 200320 Sept 20052
Lower Headley Wood Farm6 Apr 20046 Apr 20041
Liphook18 Nov 200318 Nov 20031

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

1999–2024

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 60 measured fish were spread across different length ranges.

Smallest
6 cm
Lower quarter
8.1 cm
Median
9.6 cm
Upper quarter
10 cm
Largest
12 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wey South

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

Brown / sea trout Bullhead European eel Rainbow trout Dace Chub

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 →