RiverFish

Stone loach · Barbatula barbatula

Stone loach in the Darley Beck

Largest measured stone loach: 11.4 cm

The largest stone loach measured in Environment Agency surveys of the Darley Beck was 11.4 cm, recorded at Darley Beck Upstream disused Railway line on 16 August 2011.

Across 28 measured stone loach, the median measured length was 9.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Darley Beck.

See stone loach records across England →

Most recent observation21 August 2025Darley Beck Upstream disused Railway line
Largest measured stone loach
11.4 cm
Median length
9.6 cm
Fish measured
28
Survey locations
1

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
11.4 cm16 Aug 2011Darley Beck Upstream disused Railway line129117
10.9 cm21 Aug 2013Darley Beck Upstream disused Railway line138471
10.8 cm21 Aug 2013Darley Beck Upstream disused Railway line138471
10.8 cm21 Aug 2013Darley Beck Upstream disused Railway line138471
10.6 cm10 Oct 2018Darley Beck Upstream disused Railway line153805
10.6 cm3 Sept 2015Darley Beck Upstream disused Railway line146303
10.6 cm16 Aug 2011Darley Beck Upstream disused Railway line129117
10.4 cm10 Oct 2018Darley Beck Upstream disused Railway line153805
10.3 cm21 Aug 2019Darley Beck Upstream disused Railway line155523
10.2 cm21 Sept 2017Darley Beck Upstream disused Railway line151743

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
Darley Beck Upstream disused Railway line29 Aug 200221 Aug 202514

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

2002–2025

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 28 measured fish were spread across different length ranges.

Smallest
7.5 cm
Lower quarter
9.3 cm
Median
9.6 cm
Upper quarter
10.5 cm
Largest
11.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Darley Beck

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

Brown / sea trout Bullhead Minnow

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 →