Stone loach · Barbatula barbatula

Stone loach in the River Main Deer

Largest measured stone loach: 10.6 cm

The largest stone loach measured in Environment Agency surveys of the River Main Deer was 10.6 cm, recorded at Deer Bridge on 10 June 2022.

Across 76 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 River Main Deer.

See stone loach records across England →

Most recent observation10 June 2022Deer Bridge · 13 fish

Largest measured stone loach: 10.6 cm
Median length: 7.8 cm
Fish measured: 76
Survey locations: 9

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
10.6 cm	10 Jun 2022	Deer Bridge	161955
10.5 cm	8 Jun 2016	Deer Bridge	148205
10.1 cm	27 May 2022	Forda Mill	161951
9.8 cm	27 May 2022	Forda Mill	161951
9.8 cm	18 May 2016	Forda Mill	148063
9.6 cm	10 Jun 2022	Deer Bridge	161955
9.6 cm	18 May 2016	Forda Mill	148063
9.5 cm	27 May 2022	Forda Mill	161951
9.5 cm	27 May 2022	Forda Mill	161951
9.4 cm	27 May 2022	Forda Mill	161951

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
Deer Bridge	22 Jun 1984	10 Jun 2022	7
Forda Mill	20 Jun 1984	27 May 2022	8
Derriton Bridge	21 Jun 1984	25 May 2022	6
Winscott Bridge	11 Jun 1984	23 Sept 1996	4
Gulliver Bridge	19 Jun 1984	26 May 1995	3
Pot Factory Spawning Beds	24 May 1995	24 May 1995	1
Forda Art Spawning Bed	22 May 1995	22 May 1995	1
Honeycroft Bridge	7 Jun 1984	27 Jun 1993	2
Babington Bridge	7 Jun 1984	7 Jun 1984	1

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

1984–2022

Survey records by year

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

784

085

086

087

088

089

090

091

092

693

094

695

496

097

098

099

000

001

002

003

204

005

006

007

008

009

210

011

012

013

014

015

216

017

118

019

020

021

322

Fish measured by surveyors

Measured length distribution

See how the 76 measured fish were spread across different length ranges.

Smallest: 2.4 cm
Lower quarter: 6.7 cm
Median: 7.8 cm
Upper quarter: 8.9 cm
Largest: 10.6 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Deer

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

Brown / sea trout Bullhead Minnow European eel Atlantic salmon Brook lamprey

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 →