Stone loach · Barbatula barbatula

Stone loach in the River Beaulieu

Largest measured stone loach: 11.5 cm

The largest stone loach measured in Environment Agency surveys of the River Beaulieu was 11.5 cm, recorded at Penerley Water - u/s Shepton confluence on 30 September 2008.

Across 114 measured stone loach, the median measured length was 8.4 cm.

Surveyors recorded weights for 14 stone loach. The median was 0.3 oz (0.008 kg) and the largest recorded weight was 0.6 oz (0.017 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 Beaulieu.

See stone loach records across England →

Most recent observation29 July 2025Shepton Water · 16 fish

Largest measured stone loach: 11.5 cm
Median length: 8.4 cm
Fish measured: 114
Survey locations: 19

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
11.5 cm	30 Sept 2008	Penerley Water - u/s Shepton confluence	116141
10.6 cm	3 Aug 2010	Matley Passage	123895
10.6 cm	3 Aug 2010	Matley Passage	123895
10.5 cm	3 Aug 2010	Matley Passage	123895
10.5 cm	3 Aug 2010	Matley Passage	123895
10.5 cm	1 Aug 2006	Ipley Bridge	101676
10.4 cm	3 Aug 2010	Matley Passage	123895
10.4 cm	30 Sept 2008	North Lane	116190
10.4 cm	30 Sept 2008	Penerley Water - u/s Shepton confluence	116141
10.3 cm	1 Aug 2006	Ipley Bridge	101676

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
Shepton Water	18 Jul 2013	29 Jul 2025	4
Penerley Water - u/s Shepton confluence	31 Aug 2007	29 Jul 2025	5
Withycombe Shade	15 Jul 2013	23 Jul 2025	4
Holmhill Passage	16 Jul 2013	23 Jul 2025	3
Mallard Wood	7 Sept 2007	22 Jul 2025	5
Longwater lawn	7 Sept 2007	22 Jul 2025	4
Wort's Gutter	29 Aug 2007	21 Jul 2025	3
Matley Passage	6 Sept 2001	21 Jul 2025	13
u/s Ashurst Lodge	6 Sept 2007	3 Jul 2024	4
Penerley Bridge	29 Aug 2007	8 Jul 2021	5
Upper Shepton Water	31 Aug 2007	8 Jul 2019	3
d/s Holmhill Passage	15 Aug 2017	15 Aug 2017	1
Hatchet Stream	10 Jul 2017	10 Jul 2017	1
North Lane	30 Sept 2008	25 Jul 2013	2
Longdown Inclosure Tributary	16 Jul 2013	16 Jul 2013	1
Buck Hill	25 Sept 2009	25 Sept 2009	1
Dunce's Arch	7 Sept 2007	7 Sept 2007	1
Fulliford Bog	6 Sept 2007	6 Sept 2007	1
Ipley Bridge	4 Sept 2001	1 Aug 2006	4

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

2001–2025

Survey records by year

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

201

102

003

104

005

106

1007

308

209

110

111

212

1213

014

115

016

317

118

1019

020

221

022

123

324

825

Fish measured by surveyors

Measured length distribution

See how the 114 measured fish were spread across different length ranges.

Smallest: 2.6 cm
Lower quarter: 6.9 cm
Median: 8.4 cm
Upper quarter: 9.2 cm
Largest: 11.5 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 14 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.002 kg)
Lower quarter: 0.2 oz (0.0052 kg)
Median: 0.3 oz (0.008 kg)
Upper quarter: 0.3 oz (0.0098 kg)
Heaviest: 0.6 oz (0.017 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 Beaulieu

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

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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 →