Roach · Rutilus rutilus

Roach in the River Swale

Largest measured roach: 35.9 cm

The largest roach measured in Environment Agency surveys of the River Swale was 35.9 cm, recorded at Brafferton on 10 August 1995.

Across 1,616 measured roach, the median measured length was 3.6 cm.

Surveyors recorded one individual weight: 1 lb 7.7 oz (0.672 kg).

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

See roach records across England →

Most recent observation7 August 2025Skipton-on-Swale · 3 fish

Largest measured roach: 35.9 cm
Median length: 3.6 cm
Fish measured: 1,616
Survey locations: 16

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
35.9 cm	10 Aug 1995	Brafferton	110464
32.7 cm	9 Sept 2004	Skipton-on-Swale	82084
32.7 cm	10 Aug 1995	Brafferton	110464
28.2 cm	10 Aug 1995	Brafferton	110464
26.9 cm	6 Jul 2016	Myton Grange	148426
25.2 cm	10 Aug 1995	Brafferton	110464
23.6 cm	31 Jul 2006	Myton Grange	101065
23 cm	3 Jul 2013	Myton Grange	136983
23 cm	9 Aug 1995	Maunby Demesne	110462
22.8 cm	23 Jul 2002	Topcliffe Caravan Park	55310

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
Skipton-on-Swale	10 Aug 1995	7 Aug 2025	8
Brafferton	10 Aug 1995	30 Jul 2025	18
Myton Grange	15 Aug 2002	24 Jul 2025	12
Maunby Demesne Upper Site	1 Aug 2012	5 Jul 2022	2
Maunby - Fry Survey	9 Aug 2018	9 Aug 2018	1
Thornton Bridge - Fry Survey	20 Sept 1984	1 Sept 2009	22
Holme	25 Jun 1996	1 Aug 2005	2
Fawdington	21 Jul 2005	21 Jul 2005	1
Thornton Bridge	20 Jul 2005	20 Jul 2005	1
u/s Topcliffe Weir (Gill Net)	12 Aug 2003	12 Aug 2003	1
Baldersby	14 Aug 2002	14 Aug 2002	1
Topcliffe Caravan Park	23 Jul 2002	23 Jul 2002	1
d/s Wiske	22 Jul 1997	22 Jul 1997	1
Catton	22 Jul 1997	22 Jul 1997	1
Skipton - Fry Survey	19 Sept 1996	19 Sept 1996	1
Maunby Demesne	9 Aug 1995	26 Jun 1996	2

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

1984–2025

Survey records by year

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

184

185

186

187

188

189

190

191

192

293

094

495

796

397

198

199

200

001

402

403

404

505

306

407

008

109

210

111

112

213

114

115

216

117

118

319

020

021

222

023

124

325

Fish measured by surveyors

Measured length distribution

See how the 1,616 measured fish were spread across different length ranges.

Smallest: 1.8 cm
Lower quarter: 3.1 cm
Median: 3.6 cm
Upper quarter: 4.3 cm
Largest: 35.9 cm

0–99 mm

1459

100–199 mm

136

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight: 1 lb 7.7 oz (0.672 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Swale

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

Minnow Chub Bullhead Stone loach Dace Grayling

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 →