Roach · Rutilus rutilus

Roach in the River Blyth (Main Reaches)

Largest measured roach: 22.1 cm

The largest roach measured in Environment Agency surveys of the River Blyth (Main Reaches) was 22.1 cm, recorded at Mells Bridge on 13 September 2001.

Across 216 measured roach, the median measured length was 14.3 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 roach records across England →

Most recent observation7 May 2010Mells Bridge · 3 fish

Largest measured roach: 22.1 cm
Median length: 14.3 cm
Fish measured: 216
Survey locations: 5

Individual EA measurements

Largest measured roach

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
22.1 cm	13 Sept 2001	Mells Bridge	56090
22.1 cm	13 Sept 2001	Mells Bridge	56090
21.2 cm	14 Sept 2001	Red House Farm	55931
21 cm	14 Sept 2001	Red House Farm	55931
20.8 cm	23 Nov 1987	Red House Farm	4011
20.6 cm	5 Aug 1994	Red House Farm	4018
20.5 cm	13 Sept 2001	Mells Bridge	56090
20.5 cm	13 Sept 2001	Mells Bridge	56090
20.2 cm	13 Sept 2001	Mells Bridge	56090
20.2 cm	13 Sept 2001	Mells Bridge	56090

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
Mells Bridge	24 Nov 1987	7 May 2010	6
Red House Farm	23 Nov 1987	14 Sept 2001	5
Downstream Cookley Bridge	17 Nov 1987	18 May 1995	2
Water Mill House	22 Jul 1991	5 Aug 1994	2
Downstream A144 Bridge	5 Aug 1994	5 Aug 1994	1

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

1987–2010

Survey records by year

Each bar shows how many survey visits recorded roach that year.

387

088

089

090

391

092

093

494

395

096

097

098

099

000

201

002

003

004

005

006

007

008

009

110

Fish measured by surveyors

Measured length distribution

See how the 216 measured fish were spread across different length ranges.

Smallest: 3.3 cm
Lower quarter: 9.3 cm
Median: 14.3 cm
Upper quarter: 17.8 cm
Largest: 22.1 cm

0–99 mm

100–199 mm

138

200–299 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 Stone loach 3-spined stickleback Dace 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 →