Roach · Rutilus rutilus

Roach in the River Ranworth Broad

Largest measured roach: 22.3 cm

The largest roach measured in Environment Agency surveys of the River Ranworth Broad was 22.3 cm, recorded at 222 on 19 July 1987.

Across 2,112 measured roach, the median measured length was 8 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 Ranworth Broad.

See roach records across England →

Most recent observation16 August 1999220 · 694 fish

Largest measured roach: 22.3 cm
Median length: 8 cm
Fish measured: 2,112
Survey locations: 6

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
22.3 cm	19 Jul 1987	222	17582
19.3 cm	21 Aug 1987	223	17583
19.2 cm	13 Aug 1999	221	17756
18.8 cm	21 Aug 1987	223	17583
18.5 cm	23 Aug 1994	224	17600
18.3 cm	19 Jul 1987	222	17582
18.1 cm	19 Jul 1987	222	17582
17.8 cm	23 Aug 1994	224	17600
17.8 cm	18 Jul 1987	224	17584
17.6 cm	19 Jul 1987	222	17582

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
220	5 Sept 1991	16 Aug 1999	3
221	19 Jul 1987	13 Aug 1999	4
225	18 Jul 1987	12 Aug 1999	4
222	19 Jul 1987	11 Aug 1999	4
224	18 Jul 1987	10 Aug 1999	4
223	21 Aug 1987	21 Aug 1987	1

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

1987–1999

Survey records by year

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

587

088

089

090

591

092

093

594

095

096

097

098

599

Fish measured by surveyors

Measured length distribution

See how the 2,112 measured fish were spread across different length ranges.

Smallest: 2.5 cm
Lower quarter: 7 cm
Median: 8 cm
Upper quarter: 10 cm
Largest: 22.3 cm

0–99 mm

1574

100–199 mm

537

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ranworth Broad

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

Perch Common bream Flounder Ruffe

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 →