Roach · Rutilus rutilus

Roach in the River Western Rother

Largest measured roach: 27.8 cm

The largest roach measured in Environment Agency surveys of the River Western Rother was 27.8 cm, recorded at Woolbeding on 31 July 2008.

Across 396 measured roach, the median measured length was 9.5 cm.

Surveyors recorded weights for 202 roach. The median was 0.5 oz (0.014 kg) and the largest recorded weight was 12.9 oz (0.367 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 Western Rother.

See roach records across England →

Most recent observation18 June 2026Fittleworth Bridge · 9 fish

Largest measured roach: 27.8 cm
Median length: 9.5 cm
Fish measured: 396
Survey locations: 9

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
27.8 cm	31 Jul 2008	Woolbeding	112328
25 cm	31 Jul 2008	Woolbeding	112328
24 cm	1 Jul 2005	Terwick Mill	86730
22.3 cm	24 Sept 2003	Hardham	77283
21 cm	20 Jul 2016	Woolbeding	148663
20.5 cm	16 Jul 2007	Fittleworth Bridge	106571
20.2 cm	24 Sept 2003	Hardham	77283
19.4 cm	17 Sept 2004	Hardham	82351
19 cm	5 Jul 2005	Fittleworth Bridge	86790
18.9 cm	24 Sept 2003	Hardham	77283

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
Fittleworth Bridge	29 Jul 2004	18 Jun 2026	21
Coultershaw	12 Jul 2004	18 Jun 2026	19
Woolbeding	14 Jul 2003	17 Jun 2026	14
Terwick Mill	1 Jul 2005	16 Jun 2026	8
Stedham Mill Downstream	15 Jul 2016	15 Jul 2016	1
Durford Bridge	13 Jul 2004	2 Sept 2014	5
North Mill Bypass pool	22 Jul 2009	22 Jul 2009	1
Hardham	24 Sept 2003	19 Jul 2007	5
Cowdray Estate	22 Jul 2002	22 Jul 2002	1

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

2002–2026

Survey records by year

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

102

203

504

505

506

507

408

309

310

311

212

213

414

315

316

317

318

319

020

021

322

323

324

325

426

Fish measured by surveyors

Measured length distribution

See how the 396 measured fish were spread across different length ranges.

Smallest: 2.6 cm
Lower quarter: 7.4 cm
Median: 9.5 cm
Upper quarter: 12.2 cm
Largest: 27.8 cm

0–99 mm

220

100–199 mm

169

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 202 roach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.2 oz (0.006 kg)
Median: 0.5 oz (0.014 kg)
Upper quarter: 1.1 oz (0.03 kg)
Heaviest: 12.9 oz (0.367 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 Western Rother

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

European eel Brown / sea trout Bullhead Stone loach Minnow Chub

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 →