Stone loach · Barbatula barbatula

Stone loach in the River Main Congresbury Yeo

Largest measured stone loach: 11.8 cm

The largest stone loach measured in Environment Agency surveys of the River Main Congresbury Yeo was 11.8 cm, recorded at Iwood on 10 August 2012.

Across 45 measured stone loach, the median measured length was 8.4 cm.

Surveyors recorded weights for 11 stone loach. The median was 0 oz (0.001 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 Main Congresbury Yeo.

See stone loach records across England →

Most recent observation10 August 2012Iwood · 34 fish

Largest measured stone loach: 11.8 cm
Median length: 8.4 cm
Fish measured: 45
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.

Length	Survey date	Survey location	Survey ID
11.8 cm	10 Aug 2012	Iwood	132855
11.5 cm	10 Aug 2012	Iwood	132855
11.3 cm	10 Aug 2012	Iwood	132855
11.2 cm	10 Aug 2012	Iwood	132855
11.2 cm	10 Aug 2012	Iwood	132855
10.2 cm	10 Aug 2012	Iwood	132855
9.1 cm	10 Aug 2012	Iwood	132855
9.1 cm	10 Aug 2012	Iwood	132855
9.1 cm	10 Aug 2012	Iwood	132855
9.1 cm	10 Aug 2012	Iwood	132855

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
Iwood	12 Oct 2006	10 Aug 2012	2
Perry Bridge	6 Oct 1999	6 Oct 1999	1
Iwood Bridge	27 Aug 1999	27 Aug 1999	1
Beam Bridge (Se-05)	25 Jun 1999	25 Jun 1999	1
Congresbury Church	10 Aug 1994	10 Aug 1994	1
Below Pilhay Footbridge	9 Aug 1994	9 Aug 1994	1
East Hewish	26 Jul 1994	26 Jul 1994	1
Below M5	21 Jul 1994	21 Jul 1994	1

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

1994–2012

Survey records by year

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

494

095

096

097

098

399

000

001

002

003

004

005

106

007

008

009

010

011

112

Fish measured by surveyors

Measured length distribution

See how the 45 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 6.9 cm
Median: 8.4 cm
Upper quarter: 8.9 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 11 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 oz (0.001 kg)
Median: 0 oz (0.001 kg)
Upper quarter: 0.1 oz (0.003 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 Main Congresbury Yeo

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

European eel Brown / sea trout Bullhead Roach Gudgeon Pike

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 →