RiverFish

Roach · Rutilus rutilus

Roach in the River Boveney

Largest measured roach: 17.4 cm

The largest roach measured in Environment Agency surveys of the River Boveney was 17.4 cm, recorded at Boveney Downstream Fry on 1 September 2006.

Across 1,441 measured roach, the median measured length was 4.4 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 Boveney.

See roach records across England →

Most recent observation21 August 2024Boveney Downstream Fry · 2 fish
Largest measured roach
17.4 cm
Median length
4.4 cm
Fish measured
1,441
Survey locations
2

Individual EA measurements

Largest measured roach

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
17.4 cm1 Sept 2006Boveney Downstream Fry111839
16.9 cm30 Aug 2023Boveney Downstream Fry164336
16.9 cm30 Aug 2023Boveney Downstream Fry164336
16.7 cm30 Aug 2023Boveney Downstream Fry164336
16.6 cm30 Aug 2023Boveney Upstream Fry164337
16.4 cm1 Sept 2006Boveney Downstream Fry111839
16.2 cm1 Sept 2006Boveney Downstream Fry111839
16.1 cm1 Sept 2006Boveney Downstream Fry111839
16 cm20 Aug 2008Boveney Downstream Fry125629
15.7 cm20 Aug 2008Boveney Downstream Fry125629

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 surveyedFirst recordedLast recordedVisits finding roach
Boveney Downstream Fry8 Sept 200421 Aug 202416
Boveney Upstream Fry8 Sept 200430 Aug 202316

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

2004–2024

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 1,441 measured fish were spread across different length ranges.

Smallest
1.7 cm
Lower quarter
3.7 cm
Median
4.4 cm
Upper quarter
6.6 cm
Largest
17.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Boveney

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

Gudgeon Chub Dace Bleak Minnow Perch

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 →