Perch · Perca fluviatilis

Perch in the River Rollesby Broad

Largest measured perch: 20 cm

The largest perch measured in Environment Agency surveys of the River Rollesby Broad was 20 cm, recorded at 575 on 29 September 1997.

Across 451 measured perch, the median measured length was 10.4 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 Rollesby Broad.

See perch records across England →

Most recent observation23 September 2004570 · 1 fish

Largest measured perch: 20 cm
Median length: 10.4 cm
Fish measured: 451
Survey locations: 12

Individual EA measurements

Largest measured perch

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
20 cm	29 Sept 1997	575	17706
19.5 cm	6 Oct 1997	581	17723
19.1 cm	6 Oct 1997	581	17723
18.7 cm	29 Sept 1997	575	17706
18.7 cm	29 Sept 1997	575	17706
18.6 cm	6 Oct 1997	581	17723
18.2 cm	1 Oct 1997	579	17710
18.2 cm	1 Oct 1997	579	17710
18.1 cm	6 Oct 1997	581	17723
18 cm	1 Oct 1997	579	17710

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where perch were found

Each point marks a survey location with at least one perch 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 perch
570	23 Sept 2004	23 Sept 2004	1
576	30 Sept 1997	22 Sept 2004	2
574	20 Sept 2004	20 Sept 2004	1
572	16 Sept 2004	16 Sept 2004	1
580	15 Sept 2004	15 Sept 2004	1
583	13 Oct 1997	13 Oct 1997	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 perch that year.

897

098

099

000

001

002

003

504

Fish measured by surveyors

Measured length distribution

See how the 451 measured fish were spread across different length ranges.

Smallest: 6.1 cm
Lower quarter: 9.8 cm
Median: 10.4 cm
Upper quarter: 11.1 cm
Largest: 20 cm

0–99 mm

131

100–199 mm

319

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 Roach 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 →