Stone loach · Barbatula barbatula

Stone loach in the Bourne

Largest measured stone loach: 11 cm

The largest stone loach measured in Environment Agency surveys of the Bourne was 11 cm, recorded at Hadlow College on 20 November 2003.

Across 34 measured stone loach, the median measured length was 7.4 cm.

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

See stone loach records across England →

Most recent observation7 August 2023Pierce Mill · 15 fish

Largest measured stone loach: 11 cm
Median length: 7.4 cm
Fish measured: 34
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
11 cm	20 Nov 2003	Hadlow College	78591
10.2 cm	20 Nov 2003	Hadlow College	78591
10.1 cm	20 Nov 2003	Hadlow College	78591
10 cm	20 Nov 2003	Hadlow College	78591
9.7 cm	20 Nov 2003	Hadlow College	78591
9.7 cm	20 Nov 2003	Hadlow College	78591
9.3 cm	20 Nov 2003	Hadlow College	78591
9.3 cm	20 Nov 2003	Hadlow College	78591
9 cm	20 Nov 2003	Hadlow College	78591
8.8 cm	20 Nov 2003	Hadlow College	78591

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
Pierce Mill	19 Aug 2010	7 Aug 2023	4
Hadlow College 200m u/s Bourne Bridge	6 Jul 2011	6 Jul 2011	1
Hadlow College	20 Nov 2003	20 Nov 2003	1

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

2003–2023

Survey records by year

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

103

004

005

006

007

008

009

110

211

012

013

014

015

016

117

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 34 measured fish were spread across different length ranges.

Smallest: 6.1 cm
Lower quarter: 6.9 cm
Median: 7.4 cm
Upper quarter: 9 cm
Largest: 11 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bourne

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

Brown / sea trout Chub Minnow 3-spined stickleback Pike Roach

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 →