RiverFish

Roach · Rutilus rutilus

Roach in the River Barton Broad margin

Largest measured roach: 17.2 cm

The largest roach measured in Environment Agency surveys of the River Barton Broad margin was 17.2 cm, recorded at Bm18 on 4 October 2000.

Across 187 measured roach, the median measured length was 7.5 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 Barton Broad margin.

See roach records across England →

Most recent observation4 October 2000Bm18 · 48 fish
Largest measured roach
17.2 cm
Median length
7.5 cm
Fish measured
187
Survey locations
8

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
17.2 cm4 Oct 2000Bm1818723
17.2 cm20 Sept 2000Bm2018725
16.9 cm28 Sept 2000Bm1518720
16.5 cm4 Oct 2000Bm1818723
15.4 cm4 Oct 2000Bm1718722
15.4 cm28 Sept 2000Bm1518720
15.2 cm28 Sept 2000Bm1518720
14.7 cm28 Sept 2000Bm1518720
14.2 cm20 Sept 2000Bm2018725
13.2 cm28 Sept 2000Bm1518720

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
Bm184 Oct 20004 Oct 20001
Bm174 Oct 20004 Oct 20001
Bm1628 Sept 200028 Sept 20001
Bm1528 Sept 200028 Sept 20001
Bm2327 Sept 200027 Sept 20001
Bm2227 Sept 200027 Sept 20001
Bm2020 Sept 200020 Sept 20001
Bm1920 Sept 200020 Sept 20001

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

2000–2000

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 187 measured fish were spread across different length ranges.

Smallest
3 cm
Lower quarter
6.3 cm
Median
7.5 cm
Upper quarter
9.7 cm
Largest
17.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Barton Broad margin

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

Perch Pike Rudd Ruffe 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 →