Stone loach · Barbatula barbatula

Stone loach in the River Dudwell

Largest measured stone loach: 11.8 cm

The largest stone loach measured in Environment Agency surveys of the River Dudwell was 11.8 cm, recorded at Riverdell Farm on 19 September 2002.

Across 55 measured stone loach, the median measured length was 9.2 cm.

Surveyors recorded weights for 26 stone loach. The median was 0.3 oz (0.009 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 Dudwell.

See stone loach records across England →

Most recent observation31 August 2016Willingford Farm · 21 fish

Largest measured stone loach: 11.8 cm
Median length: 9.2 cm
Fish measured: 55
Survey locations: 2

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
11.8 cm	19 Sept 2002	Riverdell Farm	72794
11.7 cm	31 Aug 2016	Willingford Farm	149136
11.5 cm	31 Aug 2016	Willingford Farm	149136
11.5 cm	31 Aug 2016	Willingford Farm	149136
11.4 cm	31 Jul 2013	Willingford Farm	137634
11.4 cm	19 Sept 2002	Riverdell Farm	72794
11.3 cm	31 Aug 2016	Willingford Farm	149136
11.1 cm	31 Aug 2016	Willingford Farm	149136
11.1 cm	31 Aug 2016	Willingford Farm	149136
10.9 cm	31 Aug 2016	Willingford Farm	149136

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
Willingford Farm	25 Jul 2005	31 Aug 2016	4
Riverdell Farm	19 Sept 2002	19 Sept 2002	1

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

2002–2016

Survey records by year

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

102

003

004

105

006

007

008

009

110

011

012

113

014

015

116

Fish measured by surveyors

Measured length distribution

See how the 55 measured fish were spread across different length ranges.

Smallest: 5.2 cm
Lower quarter: 8.5 cm
Median: 9.2 cm
Upper quarter: 10.3 cm
Largest: 11.8 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 26 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.006 kg)
Lower quarter: 0.3 oz (0.008 kg)
Median: 0.3 oz (0.009 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 Dudwell

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

Brown / sea trout 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 →