Roach · Rutilus rutilus

Roach in the River Rollesby Broad

Largest measured roach: 24.3 cm

The largest roach measured in Environment Agency surveys of the River Rollesby Broad was 24.3 cm, recorded at 571 on 24 September 1997.

Across 2,059 measured roach, the median measured length was 7.6 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 Rollesby Broad.

See roach records across England →

Most recent observation23 September 2004570 · 35 fish

Largest measured roach: 24.3 cm
Median length: 7.6 cm
Fish measured: 2,059
Survey locations: 12

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
24.3 cm	24 Sept 1997	571	17702
24.1 cm	6 Oct 1997	581	17723
24 cm	25 Sept 1997	573	17704
23.9 cm	1 Oct 1997	579	17710
23.7 cm	29 Sept 1997	575	17706
23.5 cm	24 Sept 1997	571	17702
23.3 cm	6 Oct 1997	581	17723
23.3 cm	30 Sept 1997	576	17707
22.9 cm	6 Oct 1997	581	17723
22.7 cm	6 Oct 1997	581	17723

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
570	23 Sept 2004	23 Sept 2004	1
576	30 Sept 1997	22 Sept 2004	2
574	20 Sept 2004	20 Sept 2004	1
578	16 Sept 2004	16 Sept 2004	1
572	16 Sept 2004	16 Sept 2004	1
580	15 Sept 2004	15 Sept 2004	1
581	6 Oct 1997	6 Oct 1997	1
579	1 Oct 1997	1 Oct 1997	1
577	30 Sept 1997	30 Sept 1997	1
575	29 Sept 1997	29 Sept 1997	1
573	25 Sept 1997	25 Sept 1997	1
571	24 Sept 1997	24 Sept 1997	1

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

1997–2004

Survey records by year

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

797

098

099

000

001

002

003

604

Fish measured by surveyors

Measured length distribution

See how the 2,059 measured fish were spread across different length ranges.

Smallest: 5.9 cm
Lower quarter: 7.2 cm
Median: 7.6 cm
Upper quarter: 10.9 cm
Largest: 24.3 cm

0–99 mm

1488

100–199 mm

546

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Rollesby Broad

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

Ruffe Perch Common bream Pike

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 →