RiverFish

Stone loach · Barbatula barbatula

Stone loach in the Main River Avon Sites

Largest measured stone loach: 12.3 cm

The largest stone loach measured in Environment Agency surveys of the Main River Avon Sites was 12.3 cm, recorded at Avonwick Station (Te) on 19 June 2017.

Across 24 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 Main River Avon Sites.

See stone loach records across England →

Most recent observation20 June 2024Avonwick Station (Te) · 5 fish
Largest measured stone loach
12.3 cm
Median length
8.9 cm
Fish measured
24
Survey locations
7

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
12.3 cm19 Jun 2017Avonwick Station (Te)150675
11.8 cm19 Jun 2017Avonwick Station (Te)150675
11 cm4 Jul 2016Avonwick Station (Te)148394
10.8 cm1 Jul 2019Avonwick Station (Te)154679
10.2 cm25 Sept 2007Upstream Hatchbridge (Dip)108410
10.1 cm12 Jun 2018Avonwick Station (Te)152715
10 cm19 Jun 2017Avonwick Station (Te)150675
9.9 cm15 Jun 2022Avonwick Station (Te)161125
9.9 cm15 Jun 2022Avonwick Station (Te)161125
9.6 cm15 Jun 2022Avonwick Station (Te)161125

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
Avonwick Station (Te)30 Aug 200020 Jun 202410
Bickham Bridge (Dip/5 min)20 Aug 19977 Sept 20235
Avonwick Station (5 min)7 Sept 20237 Sept 20231
Backhill Copse (5min)24 Aug 202324 Aug 20231
Bow Copse (5 min)17 Aug 202317 Aug 20231
Upstream Hatchbridge (Dip)20 Aug 199713 Sept 20225
Upstream Knap Mill (Sp)22 Aug 20119 Aug 20223

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

1997–2024

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 24 measured fish were spread across different length ranges.

Smallest
5.8 cm
Lower quarter
7.9 cm
Median
8.9 cm
Upper quarter
10 cm
Largest
12.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Avon Sites

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

Brown / sea trout Atlantic salmon Bullhead European eel Minnow Flounder

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 →