Stone loach · Barbatula barbatula

Stone loach in the River Rat

Largest measured stone loach: 12.9 cm

The largest stone loach measured in Environment Agency surveys of the River Rat was 12.9 cm, recorded at Rattlesden on 27 April 1998.

Across 100 measured stone loach, the median measured length was 9.4 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 Rat.

See stone loach records across England →

Most recent observation10 March 2017Bucks Hall Vale · 6 fish

Largest measured stone loach: 12.9 cm
Median length: 9.4 cm
Fish measured: 100
Survey locations: 2

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
12.9 cm	27 Apr 1998	Rattlesden	13477
12.4 cm	10 Mar 2017	Rattlesden	152310
12.2 cm	27 Apr 1998	Bucks Hall Vale	13478
12 cm	27 Apr 1998	Bucks Hall Vale	13478
11.8 cm	27 Apr 1998	Bucks Hall Vale	13478
11.2 cm	13 Jan 2006	Rattlesden	88769
11.2 cm	27 Apr 1998	Rattlesden	13477
11.1 cm	27 Apr 1998	Bucks Hall Vale	13478
11 cm	10 Mar 2017	Bucks Hall Vale	152318
11 cm	27 Apr 1998	Bucks Hall Vale	13478

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
Rattlesden	27 Apr 1998	10 Mar 2017	4
Bucks Hall Vale	27 Apr 1998	10 Mar 2017	2

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

1998–2017

Survey records by year

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

298

099

000

001

002

003

004

005

106

007

008

009

010

111

012

013

014

015

016

217

Fish measured by surveyors

Measured length distribution

See how the 100 measured fish were spread across different length ranges.

Smallest: 4.9 cm
Lower quarter: 7 cm
Median: 9.4 cm
Upper quarter: 10.1 cm
Largest: 12.9 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Rat

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

3-spined stickleback 10-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 →