Stone loach · Barbatula barbatula

Stone loach in the River Alham

Largest measured stone loach: 11.9 cm

The largest stone loach measured in Environment Agency surveys of the River Alham was 11.9 cm, recorded at Alford House on 22 August 1990.

Across 186 measured stone loach, the median measured length was 8.7 cm.

Surveyors recorded weights for 89 stone loach. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.5 oz (0.015 kg).

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

See stone loach records across England →

Most recent observation22 August 1990Alford House · 9 fish

Largest measured stone loach: 11.9 cm
Median length: 8.7 cm
Fish measured: 186
Survey locations: 5

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.

Length	Survey date	Survey location	Survey ID
11.9 cm	22 Aug 1990	Alford House	82648
11.6 cm	16 Aug 1990	Snagg Farm	82644
11.4 cm	22 Aug 1990	Alford House	82648
11.4 cm	16 Aug 1990	Snagg Farm	82644
11.2 cm	16 Aug 1990	Redlands Farm	82641
11 cm	16 Aug 1990	Snagg Farm	82644
11 cm	8 Aug 1990	Milton Bridge, Evercreech (Se-04)	82640
10.9 cm	21 Aug 1990	Easton Trow Bridge	82646
10.9 cm	21 Aug 1990	Easton Trow Bridge	82646
10.9 cm	16 Aug 1990	Snagg Farm	82644

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 surveyed	First recorded	Last recorded	Visits finding stone loach
Alford House	22 Aug 1990	22 Aug 1990	1
Easton Trow Bridge	21 Aug 1990	21 Aug 1990	1
Snagg Farm	16 Aug 1990	16 Aug 1990	1
Redlands Farm	16 Aug 1990	16 Aug 1990	1
Milton Bridge, Evercreech (Se-04)	8 Aug 1990	8 Aug 1990	1

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

1990–1990

Survey records by year

Each bar shows how many survey visits recorded stone loach that year.

590

Fish measured by surveyors

Measured length distribution

See how the 186 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 8.2 cm
Median: 8.7 cm
Upper quarter: 9.7 cm
Largest: 11.9 cm

0–99 mm

150

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 89 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.002 kg)
Lower quarter: 0.2 oz (0.005 kg)
Median: 0.2 oz (0.007 kg)
Upper quarter: 0.3 oz (0.009 kg)
Heaviest: 0.5 oz (0.015 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Alham

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

Brown / sea trout 3-spined stickleback Bullhead

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 →