Stone loach · Barbatula barbatula

Stone loach in the Streams to Humber

Largest measured stone loach: 14.5 cm

The largest stone loach measured in Environment Agency surveys of the Streams to Humber was 14.5 cm, recorded at Sand Bridge, Mires Beck, nr Ellerker FOULNES4 on 20 September 2016.

Across 319 measured stone loach, the median measured length was 5.7 cm.

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

See stone loach records across England →

Most recent observation2 June 2025Sand Bridge, Mires Beck, nr Ellerker FOULNES4

Largest measured stone loach: 14.5 cm
Median length: 5.7 cm
Fish measured: 319
Survey locations: 3

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
14.5 cm	20 Sept 2016	Sand Bridge, Mires Beck, nr Ellerker FOULNES4	149420
12.6 cm	3 Jun 2015	Beckside Farm, Mill Beck FOULNES3	144858
12.2 cm	14 Jul 2021	Beckside Farm, Mill Beck FOULNES3	161653
12.1 cm	14 Jul 2021	Beckside Farm, Mill Beck FOULNES3	161653
12.1 cm	14 Jul 2021	Beckside Farm, Mill Beck FOULNES3	161653
11.7 cm	9 Sept 2008	Pool Beck	115806
11.6 cm	16 Oct 2007	Pool Beck	108608
11.6 cm	25 Sept 2005	Beckside Farm, Mill Beck FOULNES3	87782
11.3 cm	9 Sept 2008	Sand Bridge, Mires Beck, nr Ellerker FOULNES4	115807
11.3 cm	16 Oct 2007	Beckside Farm, Mill Beck FOULNES3	108659

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
Sand Bridge, Mires Beck, nr Ellerker FOULNES4	10 Oct 2002	2 Jun 2025	10
Beckside Farm, Mill Beck FOULNES3	10 Oct 2002	2 Jun 2025	10
Pool Beck	16 Oct 2007	8 Jun 2011	3

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.

202

103

104

205

106

307

208

009

010

111

012

013

214

215

216

017

018

019

020

121

022

123

024

225

Fish measured by surveyors

Measured length distribution

See how the 319 measured fish were spread across different length ranges.

Smallest: 2.7 cm
Lower quarter: 5 cm
Median: 5.7 cm
Upper quarter: 8.6 cm
Largest: 14.5 cm

0–99 mm

279

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Streams to Humber

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

European eel 3-spined stickleback Roach Brown / sea trout Flounder 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 →