Roach · Rutilus rutilus

Roach in the River Filby Broad

Largest measured roach: 25.2 cm

The largest roach measured in Environment Agency surveys of the River Filby Broad was 25.2 cm, recorded at 555 on 21 August 1997.

Across 48 measured roach, the median measured length was 6.7 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 Filby Broad.

See roach records across England →

Most recent observation27 August 1997559 · 8 fish

Largest measured roach: 25.2 cm
Median length: 6.7 cm
Fish measured: 48
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
25.2 cm	21 Aug 1997	555	17668
24.3 cm	27 Aug 1997	559	17671
24 cm	21 Aug 1997	555	17668
23.3 cm	27 Aug 1997	559	17671
23 cm	21 Aug 1997	555	17668
22.3 cm	19 Aug 1997	551	17664
21.5 cm	21 Aug 1997	555	17668
21.2 cm	20 Aug 1997	553	17666
20.3 cm	27 Aug 1997	559	17671
20.3 cm	27 Aug 1997	559	17671

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
559	27 Aug 1997	27 Aug 1997	1
557	26 Aug 1997	26 Aug 1997	1
555	21 Aug 1997	21 Aug 1997	1
553	20 Aug 1997	20 Aug 1997	1
552	20 Aug 1997	20 Aug 1997	1
551	19 Aug 1997	19 Aug 1997	1

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

1997–1997

Survey records by year

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

697

Fish measured by surveyors

Measured length distribution

See how the 48 measured fish were spread across different length ranges.

Smallest: 3.9 cm
Lower quarter: 6.1 cm
Median: 6.7 cm
Upper quarter: 16.3 cm
Largest: 25.2 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Filby Broad

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

Ruffe Perch Common bream

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 →