Stone loach · Barbatula barbatula

Stone loach in the River Hamps

Largest measured stone loach: 12.2 cm

The largest stone loach measured in Environment Agency surveys of the River Hamps was 12.2 cm, recorded at Stonyslack Farm on 17 April 2003.

Across 145 measured stone loach, the median measured length was 8.4 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 Hamps.

See stone loach records across England →

Most recent observation1 October 2025Waterhouses

Largest measured stone loach: 12.2 cm
Median length: 8.4 cm
Fish measured: 145
Survey locations: 7

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
12.2 cm	17 Apr 2003	Stonyslack Farm	76057
11.8 cm	3 Sept 2013	Onecote Grange	139203
11.6 cm	2 Oct 2014	Waterhouses	143293
11.5 cm	2 Oct 2014	Waterhouses	143293
11.1 cm	3 Sept 2013	Onecote Grange	139203
11.1 cm	3 Sept 2013	Onecote Grange	139203
11.1 cm	3 Sept 2013	Onecote Grange	139203
11 cm	2 Oct 2014	Waterhouses	143293
11 cm	3 Sept 2013	Onecote Grange	139203
10.8 cm	17 Apr 2003	Stonyslack Farm	76057

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
Waterhouses	15 Oct 2003	1 Oct 2025	4
Ford	2 Sept 1997	19 Sept 2025	6
Onecote Grange	30 Mar 1994	16 Sept 2025	7
Green Farm	15 Sept 2025	15 Sept 2025	1
Dukeslane Bridge	30 Mar 2009	30 Mar 2009	1
Paper Mill Farm, Winkhill	23 Oct 2003	23 Oct 2003	1
Stonyslack Farm	17 Apr 2003	17 Apr 2003	1

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

1994–2025

Survey records by year

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

194

095

096

297

098

099

000

001

002

503

004

005

006

007

008

209

210

011

012

213

114

015

016

017

018

219

020

021

022

023

024

425

Fish measured by surveyors

Measured length distribution

See how the 145 measured fish were spread across different length ranges.

Smallest: 3.2 cm
Lower quarter: 7.5 cm
Median: 8.4 cm
Upper quarter: 9.5 cm
Largest: 12.2 cm

0–99 mm

123

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hamps

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

Brown / sea trout Bullhead Minnow Brook lamprey Grayling

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 →