Roach · Rutilus rutilus

Roach in the Old West River

Largest measured roach: 28.8 cm

The largest roach measured in Environment Agency surveys of the Old West River was 28.8 cm, recorded at Willow Grange Farm on 30 September 1997.

Across 21,383 measured roach, the median measured length was 8.8 cm.

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

See roach records across England →

Most recent observation15 September 2023Willow Grange Farm · 12 fish

Largest measured roach: 28.8 cm
Median length: 8.8 cm
Fish measured: 21,383
Survey locations: 10

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
28.8 cm	30 Sept 1997	Willow Grange Farm	30004
27.8 cm	29 Jul 1993	Flat Bridge Farm	29984
27.8 cm	29 Jul 1993	Flat Bridge Farm	29984
27.3 cm	31 Oct 1991	Willow Grange Farm	29980
27.3 cm	29 Oct 1991	Smithy Fen Farm	29978
26.8 cm	4 Nov 1991	Stretham Old Engine	29981
26.8 cm	31 Oct 1991	Willow Grange Farm	29980
26.8 cm	31 Oct 1991	Willow Grange Farm	29980
26.3 cm	24 Oct 1991	Hermitage Marina	29974
25.8 cm	25 Sept 1997	Australia Farm	30003

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
Willow Grange Farm	8 Jul 1988	15 Sept 2023	14
Stretham Old Engine	8 Jul 1988	13 Sept 2023	14
Smithy Fen Farm	6 Jul 1988	7 Sept 2023	12
Flat Bridge Farm	5 Jul 1988	6 Sept 2023	12
Hermitage Marina	4 Jul 1988	5 Sept 2023	13
Australia Farm	7 Jul 1988	18 Oct 2006	6
Ewell Fen	7 Jul 1988	12 Oct 2006	7
Weathersome Common	26 Jul 1988	10 Oct 2006	7
Stretham Ferry Lagoon (No 2)	3 Nov 2005	3 Nov 2005	1
Stretham Ferry Lagoon (No 1)	28 Oct 2004	3 Nov 2005	2

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

1988–2023

Survey records by year

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

888

089

090

891

092

893

094

095

596

897

098

099

700

001

002

503

604

705

806

107

008

509

010

011

012

013

314

015

016

417

018

019

020

021

022

523

Fish measured by surveyors

Measured length distribution

See how the 21,383 measured fish were spread across different length ranges.

Smallest: 3.2 cm
Lower quarter: 7.8 cm
Median: 8.8 cm
Upper quarter: 11.8 cm
Largest: 28.8 cm

0–99 mm

12939

100–199 mm

8147

200–299 mm

297

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Old West River

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

Perch Pike Bitterling Tench Bleak Common bream

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 →