Roach · Rutilus rutilus

Roach in the River Glaze

Largest measured roach: 28.4 cm

The largest roach measured in Environment Agency surveys of the River Glaze was 28.4 cm, recorded at Glgl20 on 20 May 2008.

Across 576 measured roach, the median measured length was 8.6 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 Glaze.

See roach records across England →

Most recent observation13 May 2025Glgl10 · 15 fish

Largest measured roach: 28.4 cm
Median length: 8.6 cm
Fish measured: 576
Survey locations: 8

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
28.4 cm	20 May 2008	Glgl20	114096
27 cm	20 May 2008	Glgl20	114096
26.7 cm	20 May 2008	Glgl20	114096
26.7 cm	20 May 2008	Glgl20	114096
25.3 cm	20 May 2008	Glgl20	114096
25.2 cm	20 May 2008	Glgl20	114096
24.2 cm	24 Sept 2010	Glgl12	124096
24.2 cm	24 Sept 2010	Glgl12	124096
22.9 cm	24 Apr 2010	Glgl30	124099
22.7 cm	20 May 2008	Glgl20	114096

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
Glgl10	22 Aug 2013	13 May 2025	2
Glgl30	24 Apr 2010	8 May 2025	3
Glgl12	24 Sept 2010	7 May 2025	3
Glgl7.5	1 Jul 2019	7 Jun 2022	2
Glgl05	1 Sept 2005	7 Jun 2022	6
Glgl20	20 May 2008	12 May 2016	5
Glgl25	19 May 2008	22 Apr 2009	2
Glgl15	21 May 2008	21 May 2008	1

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

2005–2025

Survey records by year

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

105

006

007

308

309

310

011

012

313

014

015

416

017

018

219

020

021

222

023

024

325

Fish measured by surveyors

Measured length distribution

See how the 576 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 6.6 cm
Median: 8.6 cm
Upper quarter: 15 cm
Largest: 28.4 cm

0–99 mm

309

100–199 mm

228

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Glaze

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

European eel Perch Gudgeon Chub 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 →