RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Wallington

Largest measured stone loach: 18.1 cm

The largest stone loach measured in Environment Agency surveys of the River Wallington was 18.1 cm, recorded at Comphouse Ford on 15 August 2001.

Across 142 measured stone loach, the median measured length was 7.5 cm.

Surveyors recorded weights for 15 stone loach. The median was 0.4 oz (0.01 kg) and the largest recorded weight was 0.7 oz (0.019 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 Wallington.

See stone loach records across England →

Most recent observation15 August 2024Whitedell Farm · 15 fish
Largest measured stone loach
18.1 cm
Median length
7.5 cm
Fish measured
142
Survey locations
8

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
18.1 cm15 Aug 2001Comphouse Ford51943
13 cm9 May 2013Potwell Ford135968
12.7 cm16 Aug 2006Potwell Ford101570
12.6 cm9 May 2013Potwell Ford135968
12.5 cm25 Jun 2008Whitedell Farm113708
12.4 cm15 Aug 2001Potwell Ford22883
12.1 cm15 Aug 2001Potwell Ford22883
12 cm15 Aug 2001Comphouse Ford51943
12 cm15 Aug 2001Potwell Ford22883
11.6 cm13 Jul 2010Upstream of Boarhunt Bridge123890

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
Whitedell Farm6 May 200715 Aug 20249
Upstream of Boarhunt Bridge7 Jun 200713 Aug 20249
Potwell Ford15 Aug 200112 Aug 20165
Newlands Farm21 Sept 200512 Aug 20163
Hipley Copse1 Jul 20081 Jul 20081
Southwick bypass11 Jun 200711 Jun 20071
Spurling's Farm7 May 20077 May 20071
Comphouse Ford15 Aug 200115 Aug 20011

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

2001–2024

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 142 measured fish were spread across different length ranges.

Smallest
1 cm
Lower quarter
6.5 cm
Median
7.5 cm
Upper quarter
8.9 cm
Largest
18.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 15 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.004 kg)
Lower quarter
0.3 oz (0.0085 kg)
Median
0.4 oz (0.01 kg)
Upper quarter
0.5 oz (0.0155 kg)
Heaviest
0.7 oz (0.019 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 Wallington

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

Roach European eel Brown / sea trout Minnow Bullhead Chub

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 →