Stone loach · Barbatula barbatula

Stone loach in the River Blyth (Main Reaches)

Largest measured stone loach: 12.5 cm

The largest stone loach measured in Environment Agency surveys of the River Blyth (Main Reaches) was 12.5 cm, recorded at Red House Farm on 5 August 1994.

Across 573 measured stone loach, the median measured length was 7 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 Blyth (Main Reaches).

See stone loach records across England →

Most recent observation1 August 2016Red House Farm · 22 fish

Largest measured stone loach: 12.5 cm
Median length: 7 cm
Fish measured: 573
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.

Length	Survey date	Survey location	Survey ID
12.5 cm	5 Aug 1994	Red House Farm	4018
11.8 cm	14 Sept 2001	Red House Farm	55931
11.7 cm	7 May 2010	Mells Bridge	121487
11.6 cm	23 Nov 1987	Red House Farm	4011
11.3 cm	13 Sept 2001	Mells Bridge	56090
11.3 cm	13 Sept 2001	Mells Bridge	56090
11.3 cm	13 Sept 2001	Mells Bridge	56090
11.2 cm	13 Sept 2001	Mells Bridge	56090
11.1 cm	13 Sept 2001	Mells Bridge	56090
11 cm	23 Nov 1987	Red House Farm	4011

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
Red House Farm	23 Nov 1987	1 Aug 2016	7
Mells Bridge	24 Nov 1987	7 Jun 2016	7
Blyford Sluice	12 Sept 2001	12 Sept 2001	1
Water Mill House	22 Jul 1991	5 Aug 1994	2
Downstream A144 Bridge	18 Nov 1987	5 Aug 1994	3
Downstream Cookley Bridge	17 Nov 1987	17 Nov 1987	1

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

1987–2016

Survey records by year

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

487

088

089

090

491

092

093

494

295

096

097

098

099

000

301

002

003

004

005

006

007

008

009

210

011

012

013

014

015

216

Fish measured by surveyors

Measured length distribution

See how the 573 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 5.7 cm
Median: 7 cm
Upper quarter: 8.7 cm
Largest: 12.5 cm

0–99 mm

533

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blyth (Main Reaches)

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

European eel 3-spined stickleback Dace Roach 10-spined stickleback Rudd

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 →