RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Tas

Largest measured stone loach: 12.1 cm

The largest stone loach measured in Environment Agency surveys of the River Tas was 12.1 cm, recorded at Tasburgh Mill Farm on 5 April 2005.

Across 1,578 measured stone loach, the median measured length was 7.7 cm.

Surveyors recorded weights for 12 stone loach. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.3 oz (0.009 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 Tas.

See stone loach records across England →

Most recent observation2 May 2024Downstream Stoke Mill · 30 fish
Largest measured stone loach
12.1 cm
Median length
7.7 cm
Fish measured
1,578
Survey locations
11

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
12.1 cm5 Apr 2005Tasburgh Mill Farm84419
11.5 cm7 Apr 2005Upstream Tasburgh Hall84613
11.4 cm22 Apr 2005Upstream Hempnall Beck84614
11.3 cm2 May 2024Downstream Stoke Mill166211
11.3 cm5 May 2022Markshall Bridge160997
11.3 cm22 Apr 2005Upstream Hempnall Beck84614
11.2 cm6 May 2016Downstream Stoke Mill148300
11.2 cm1 May 2013Downstream Forncett Street135977
11.2 cm7 Apr 2005Upstream Tasburgh Hall84613
11.1 cm27 May 2022Downstream Stoke Mill161829

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
Downstream Stoke Mill7 Apr 19872 May 202410
Markshall Bridge6 Apr 198725 Apr 20249
Tasburgh Mill Farm27 Apr 19879 Apr 20246
Upstream Shotesham Park15 Apr 199618 May 20227
Downstream Forncett Street22 Apr 198719 Apr 20229
CEGB Trowse27 Apr 200527 Apr 20051
Upstream Hempnall Beck15 Apr 198722 Apr 20053
Upstream Tasburgh Hall24 Apr 19877 Apr 20055
Flordon Common28 Apr 19876 Apr 20056
Upstream Tharston Mill14 Apr 19879 May 20003
Rainthorpe Hall16 Apr 198716 Apr 19871

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

1987–2024

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 1,578 measured fish were spread across different length ranges.

Smallest
2.7 cm
Lower quarter
6.3 cm
Median
7.7 cm
Upper quarter
8.6 cm
Largest
12.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 12 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.003 kg)
Lower quarter
0.2 oz (0.0068 kg)
Median
0.2 oz (0.007 kg)
Upper quarter
0.3 oz (0.0082 kg)
Heaviest
0.3 oz (0.009 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 Tas

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

European eel Roach Bullhead Dace Pike Gudgeon

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 →