Roach · Rutilus rutilus

Roach in the Silk Stream

Largest measured roach: 23.4 cm

The largest roach measured in Environment Agency surveys of the Silk Stream was 23.4 cm, recorded at Silk stream Park on 12 September 2011.

Across 1,406 measured roach, the median measured length was 6.9 cm.

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

See roach records across England →

Most recent observation28 May 2026Rushgrove Park · 24 fish

Largest measured roach: 23.4 cm
Median length: 6.9 cm
Fish measured: 1,406
Survey locations: 3

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
23.4 cm	12 Sept 2011	Silk stream Park	127979
22 cm	12 Sept 2011	Silk stream Park	127979
21.2 cm	10 Nov 2005	Edgeware Road	87878
20.5 cm	12 Sept 2011	Silk stream Park	127979
20 cm	12 Sept 2011	Silk stream Park	127979
19.8 cm	12 Sept 2011	Silk stream Park	127979
19.3 cm	21 Sept 1994	Edgeware Road	103234
19.1 cm	12 Sept 2011	Silk stream Park	127979
19.1 cm	10 Nov 2005	Edgeware Road	87878
19.1 cm	10 Nov 2005	Edgeware Road	87878

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
Rushgrove Park	13 Jun 2013	28 May 2026	2
Silk stream Park	12 Sept 2011	12 Sept 2011	1
Edgeware Road	21 Sept 1994	10 Nov 2005	3

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

1994–2026

Survey records by year

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

194

095

096

097

098

199

000

001

002

003

004

105

006

007

008

009

010

111

012

113

014

015

016

017

018

019

020

021

022

023

024

025

126

Fish measured by surveyors

Measured length distribution

See how the 1,406 measured fish were spread across different length ranges.

Smallest: 3.1 cm
Lower quarter: 6.3 cm
Median: 6.9 cm
Upper quarter: 7.5 cm
Largest: 23.4 cm

0–99 mm

1202

100–199 mm

199

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Silk Stream

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

3-spined stickleback Perch

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 →