RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Glaven

Largest measured stone loach: 12.8 cm

The largest stone loach measured in Environment Agency surveys of the River Glaven was 12.8 cm, recorded at Upstream Thornage Ford on 2 May 2019.

Across 686 measured stone loach, the median measured length was 8.1 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 Glaven.

See stone loach records across England →

Most recent observation16 June 2026Upstream Glandford Mill · 1 fish
Largest measured stone loach
12.8 cm
Median length
8.1 cm
Fish measured
686
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 cm2 May 2019Upstream Thornage Ford155908
12.7 cm15 May 2014Upstream Thornage Ford140965
12.7 cm24 May 2011Upstream Thornage Ford127512
12.6 cm2 May 2019Upstream Thornage Ford155908
12.5 cm2 May 2019Upstream Thornage Ford155908
12.3 cm24 May 2011Upstream Thornage Ford127512
12 cm2 May 2019Upstream Thornage Ford155908
12 cm2 May 2019Upstream Thornage Ford155908
12 cm2 May 2019Upstream Thornage Ford155908
12 cm1 Jun 2017Thornage Bridge151538

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
Upstream Glandford Mill20 Jan 198816 Jun 202610
Letheringsett18 Jan 198821 May 20267
Upstream Thornage Ford14 Jan 198816 May 202512
Upstream Wiveton Bridge19 Mar 199111 Jul 20237
Thornage Bridge13 Jan 19888 Jun 20238
D/s Hunworth railway bridge12 Jul 199912 Jul 19991

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

1988–2026

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 686 measured fish were spread across different length ranges.

Smallest
2.9 cm
Lower quarter
6.9 cm
Median
8.1 cm
Upper quarter
9.7 cm
Largest
12.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Glaven

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

Bullhead 3-spined stickleback European eel Brook lamprey Pike Perch

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 →