Stone loach · Barbatula barbatula

Stone loach in the Gallica Stream

Largest measured stone loach: 11 cm

The largest stone loach measured in Environment Agency surveys of the Gallica Stream was 11 cm, recorded at Upstream Elsford Bridge on 17 August 1993.

Across 81 measured stone loach, the median measured length was 7.2 cm.

Surveyors recorded weights for 61 stone loach. The median was 0.1 oz (0.004 kg) and the largest recorded weight was 0.5 oz (0.013 kg).

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

See stone loach records across England →

Most recent observation18 August 1993Holt Mill · 37 fish

Largest measured stone loach: 11 cm
Median length: 7.2 cm
Fish measured: 81
Survey locations: 3

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 cm	17 Aug 1993	Upstream Elsford Bridge	79974
10.1 cm	18 Aug 1993	Holt Mill	79971
10.1 cm	18 Aug 1993	Holt Mill	79971
10.1 cm	17 Aug 1993	Upstream Elsford Bridge	79974
9.8 cm	17 Aug 1993	Upstream Elsford Bridge	79974
9.8 cm	17 Aug 1993	Upstream Elsford Bridge	79974
9.7 cm	18 Aug 1993	Holt Mill	79971
9.7 cm	17 Aug 1993	Upstream Elsford Bridge	79974
9.5 cm	18 Aug 1993	Holt Mill	79971
9.5 cm	18 Aug 1993	Holt Mill	79971

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
Upstream Holt Mill	18 Aug 1993	18 Aug 1993	1
Holt Mill	18 Aug 1993	18 Aug 1993	1
Upstream Elsford Bridge	17 Aug 1993	17 Aug 1993	1

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

1993–1993

Survey records by year

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

393

Fish measured by surveyors

Measured length distribution

See how the 81 measured fish were spread across different length ranges.

Smallest: 2.4 cm
Lower quarter: 4.5 cm
Median: 7.2 cm
Upper quarter: 8.7 cm
Largest: 11 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 61 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.002 kg)
Median: 0.1 oz (0.004 kg)
Upper quarter: 0.2 oz (0.007 kg)
Heaviest: 0.5 oz (0.013 kg)

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

More fish in this river

Explore the Gallica Stream

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

Brown / sea trout Bullhead European eel

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 →