Stone loach · Barbatula barbatula

Stone loach in the Main River Parrett

Largest measured stone loach: 12 cm

The largest stone loach measured in Environment Agency surveys of the Main River Parrett was 12 cm, recorded at Bow Barn Farm on 2 August 2011.

Across 406 measured stone loach, the median measured length was 7.8 cm.

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

See stone loach records across England →

Most recent observation24 July 2025Gawbridge

Largest measured stone loach: 12 cm
Median length: 7.8 cm
Fish measured: 406
Survey locations: 6

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
12 cm	2 Aug 2011	Bow Barn Farm	127309
11.7 cm	11 Aug 2021	Yeo Valley Creamery	160096
11.7 cm	2 Aug 2011	Bow Barn Farm	127309
11.7 cm	27 Jul 2011	Yeo Valley Creamery	127294
11.2 cm	3 Aug 2017	Yeo Valley Creamery	151125
11.2 cm	13 Aug 2013	Gawbridge	137911
11.1 cm	15 Aug 2019	Bow Barn Farm	155136
11 cm	3 Aug 2017	Yeo Valley Creamery	151125
11 cm	3 Aug 2017	Yeo Valley Creamery	151125
10.8 cm	2 Aug 2011	Bow Barn Farm	127309

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
Gawbridge	17 Sept 2009	24 Jul 2025	7
Downstream Lecher Water	20 Jul 2009	8 Jul 2025	6
Bow Barn Farm	30 Sept 2009	3 Jul 2025	8
Yeo Valley Creamery	28 Jul 2009	13 Jul 2023	8
Haselbury Mill	10 Jul 2009	4 Aug 2021	5
Knapp Br.	7 Aug 2013	7 Aug 2013	1

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

2009–2025

Survey records by year

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

509

010

411

012

513

014

315

016

317

018

519

020

421

022

323

024

325

Fish measured by surveyors

Measured length distribution

See how the 406 measured fish were spread across different length ranges.

Smallest: 2.2 cm
Lower quarter: 4.8 cm
Median: 7.8 cm
Upper quarter: 9 cm
Largest: 12 cm

0–99 mm

370

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Parrett

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

European eel Roach Perch Ruffe Gudgeon 3-spined stickleback

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 →