RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Idle

Largest measured stone loach: 11.4 cm

The largest stone loach measured in Environment Agency surveys of the River Idle was 11.4 cm, recorded at Bawtry on 18 May 2010.

Across 435 measured stone loach, the median measured length was 6.4 cm.

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

See stone loach records across England →

Most recent observation23 August 2024Bawtry
Largest measured stone loach
11.4 cm
Median length
6.4 cm
Fish measured
435
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.

LengthSurvey dateSurvey locationSurvey ID
11.4 cm18 May 2010Bawtry121693
9.8 cm2 May 2014Tiln141007
9.6 cm13 Apr 2017Chain Bridge Lane150347
9.5 cm11 Apr 2017Eaton150339
9.2 cm11 Apr 2017Eaton150339
9.2 cm7 May 2014Mattersey Priory140751
9.2 cm7 May 2014Mattersey Priory140751
9.2 cm2 May 2014Tiln141007
9.2 cm4 May 2011Bawtry126161
9.1 cm4 May 2011Mattersey Priory126160

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
Bawtry10 Oct 200223 Aug 20247
Chain Bridge Lane8 Mar 200021 Aug 20249
Mattersey Priory20 Sept 200513 Apr 20177
Tiln19 Feb 199111 Apr 20175
Eaton18 Sept 200211 Apr 20178
Gamston23 Nov 198923 Nov 19891

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

1989–2024

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 435 measured fish were spread across different length ranges.

Smallest
2.9 cm
Lower quarter
5.5 cm
Median
6.4 cm
Upper quarter
7.6 cm
Largest
11.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Idle

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

European eel Roach Perch Pike Chub Gudgeon

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 →