Roach · Rutilus rutilus

Roach in the West Glen

Largest measured roach: 21 cm

The largest roach measured in Environment Agency surveys of the West Glen was 21 cm, recorded at Little Bytham on 23 March 1994.

Across 32 measured roach, the median measured length was 12.8 cm.

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

See roach records across England →

Most recent observation9 June 2023Upstream Carlby Road Bridge · 13 fish

Largest measured roach: 21 cm
Median length: 12.8 cm
Fish measured: 32
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
21 cm	23 Mar 1994	Little Bytham	54342
21 cm	23 Mar 1994	Little Bytham	54342
21 cm	30 Apr 1991	Little Bytham	54333
20.5 cm	30 Apr 1991	Little Bytham	54333
19.5 cm	30 Apr 1991	Little Bytham	54333
19.5 cm	30 Apr 1991	Little Bytham	54333
19.5 cm	30 Apr 1991	Little Bytham	54333
18.5 cm	23 Mar 1994	Little Bytham	54342
17 cm	30 Apr 1991	Little Bytham	54333
16.5 cm	23 Mar 1994	Little Bytham	54342

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
Upstream Carlby Road Bridge	12 Apr 2017	9 Jun 2023	2
Little Bytham	30 Apr 1991	23 Mar 1994	2
Aunby	23 Mar 1994	23 Mar 1994	1
Shillingthorpe	21 Mar 1994	21 Mar 1994	1
Essendine	30 Apr 1991	30 Apr 1991	1

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

1991–2023

Survey records by year

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

291

092

093

394

095

096

097

098

099

000

001

002

003

004

005

006

007

008

009

010

011

012

013

014

015

016

117

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 32 measured fish were spread across different length ranges.

Smallest: 8.5 cm
Lower quarter: 10.3 cm
Median: 12.8 cm
Upper quarter: 17.4 cm
Largest: 21 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the West Glen

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

Minnow European eel Stone loach Bullhead Dace Pike

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 →