Roach · Rutilus rutilus

Roach in the River Swilgate

Largest measured roach: 30.6 cm

The largest roach measured in Environment Agency surveys of the River Swilgate was 30.6 cm, recorded at D/s of weir (tidal) on 30 September 2005.

Across 1,677 measured roach, the median measured length was 10.3 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 Swilgate.

See roach records across England →

Most recent observation23 August 2024Rails Meadow · 64 fish

Largest measured roach: 30.6 cm
Median length: 10.3 cm
Fish measured: 1,677
Survey locations: 7

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
30.6 cm	30 Sept 2005	D/s of weir (tidal)	86518
30.4 cm	8 Sept 2016	Rails Meadow	149243
26.5 cm	12 Sept 2018	Rails Meadow	153374
26 cm	20 Jan 1976	Gander Lane	76571
25.7 cm	15 Nov 1987	Gander Lane	76563
25.4 cm	18 May 1992	Gander Lane	76553
24.2 cm	18 May 1992	Gander Lane	76553
24.1 cm	15 Aug 2003	D/s of weir (tidal)	76720
24 cm	28 Aug 2002	D/s of weir (tidal)	55930
23 cm	20 Jan 1976	Gander Lane	76571

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
Rails Meadow	10 Oct 2013	23 Aug 2024	6
Prior's Park	10 Oct 2013	8 Sept 2016	2
D/s of weir (tidal)	28 Aug 2002	8 Aug 2014	6
Elmstone Hardwicke	21 Oct 1998	16 May 2014	4
Tredington	20 Jan 1976	7 May 2014	4
Gander Lane	20 Jan 1976	21 Oct 1998	4
Manor Farm Industrial Estate	15 Dec 1987	15 Dec 1987	1

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

1976–2024

Survey records by year

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

276

077

078

079

080

081

082

083

084

085

086

287

088

089

090

091

192

093

094

095

096

097

398

099

000

001

102

203

104

205

006

007

008

109

010

011

112

213

314

015

216

017

118

019

020

121

122

023

124

Fish measured by surveyors

Measured length distribution

See how the 1,677 measured fish were spread across different length ranges.

Smallest: 0.7 cm
Lower quarter: 7 cm
Median: 10.3 cm
Upper quarter: 13.5 cm
Largest: 30.6 cm

0–99 mm

774

100–199 mm

869

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Swilgate

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

Dace European eel Stone loach 3-spined stickleback Chub Gudgeon

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 →