Stone loach · Barbatula barbatula

Stone loach in the River Candover

Largest measured stone loach: 10 cm

The largest stone loach measured in Environment Agency surveys of the River Candover was 10 cm, recorded at Abbotstone on 17 August 2010.

Across 33 measured stone loach, the median measured length was 8 cm.

Surveyors recorded weights for 5 stone loach. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.4 oz (0.01 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 Candover.

See stone loach records across England →

Most recent observation18 August 2025Abbotstone · 32 fish

Largest measured stone loach: 10 cm
Median length: 8 cm
Fish measured: 33
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
10 cm	17 Aug 2010	Abbotstone	123812
9.8 cm	9 Aug 2011	Abbotstone	127304
9.6 cm	17 Aug 2010	Abbotstone	123812
9.5 cm	17 Aug 2010	Abbotstone	123812
9.2 cm	17 Aug 2010	Abbotstone	123812
9.1 cm	17 Aug 2010	Abbotstone	123812
9 cm	17 Aug 2010	Abbotstone	123812
8.7 cm	9 Aug 2011	Abbotstone	127304
8.6 cm	17 Aug 2010	Abbotstone	123812
8.6 cm	8 Aug 2005	Abbotstone	86153

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
Abbotstone	8 Aug 2005	18 Aug 2025	17
Granny Goss riffle	8 Sept 2009	14 Aug 2025	11
Duck meadow	25 Sept 2015	11 Aug 2025	4
Upper Fobdown restoration site	20 Oct 2015	20 Oct 2015	1
Lower Fobdown restoration site	20 Oct 2015	20 Oct 2015	1
Granny Goss restoration site	26 Sept 2011	2 Oct 2013	3
Castle Meadow	2 Oct 2013	2 Oct 2013	1
Folly Main	9 Sept 2009	9 Sept 2009	1

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

2005–2025

Survey records by year

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

105

106

007

108

309

110

311

212

413

014

515

016

317

218

219

020

321

122

223

224

325

Fish measured by surveyors

Measured length distribution

See how the 33 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 7.6 cm
Median: 8 cm
Upper quarter: 8.6 cm
Largest: 10 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 5 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: 0.2 oz (0.006 kg)
Median: 0.2 oz (0.007 kg)
Upper quarter: 0.3 oz (0.009 kg)
Heaviest: 0.4 oz (0.01 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 Candover

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

Brown / sea trout Bullhead Minnow 3-spined stickleback Atlantic salmon Brook lamprey

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 →