Roach · Rutilus rutilus

Roach in the River Itchen

Largest measured roach: 32.5 cm

The largest roach measured in Environment Agency surveys of the River Itchen was 32.5 cm, recorded at Southam on 6 November 1986.

Across 625 measured roach, the median measured length was 9.5 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 Itchen.

See roach records across England →

Most recent observation17 May 2023Long Itchington · 59 fish

Largest measured roach: 32.5 cm
Median length: 9.5 cm
Fish measured: 625
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
32.5 cm	6 Nov 1986	Southam	80996
31.5 cm	6 Nov 1986	Southam	80996
29.8 cm	6 Nov 1986	Southam	80996
29.5 cm	24 Feb 1992	Long Itchington	81003
29 cm	22 Oct 1997	Southam	80981
28.9 cm	6 Nov 1986	Southam	80996
28.6 cm	24 Feb 1992	Long Itchington	81003
28.6 cm	6 Nov 1986	Southam	80996
26.3 cm	6 Nov 1986	Southam	80996
24.8 cm	22 Oct 1997	Southam	80981

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
Long Itchington	6 Nov 1986	17 May 2023	8
Snowford Bridge	29 Jun 1993	23 Sept 2008	3
Southam	6 Nov 1986	22 Oct 1997	3

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

1986–2023

Survey records by year

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

286

087

088

089

090

091

292

193

094

095

096

397

098

099

000

001

002

003

004

005

006

007

208

009

010

011

012

013

014

015

116

017

118

119

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 625 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 7.8 cm
Median: 9.5 cm
Upper quarter: 12.6 cm
Largest: 32.5 cm

0–99 mm

350

100–199 mm

244

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Itchen

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

Pike Stone loach Bullhead Minnow Dace 3-spined stickleback

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 →