Perch · Perca fluviatilis

Perch in the River Glaven

Largest measured perch: 26.6 cm

The largest perch measured in Environment Agency surveys of the River Glaven was 26.6 cm, recorded at Upstream Wiveton Bridge on 19 May 2008.

Across 54 measured perch, the median measured length was 15.4 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 Glaven.

See perch records across England →

Most recent observation29 July 2021D/s Hunworth railway bridge · 1 fish

Largest measured perch: 26.6 cm
Median length: 15.4 cm
Fish measured: 54
Survey locations: 9

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
26.6 cm	19 May 2008	Upstream Wiveton Bridge	112080
23.2 cm	24 May 2011	Upstream Thornage Ford	127512
20.4 cm	19 May 2008	Upstream Wiveton Bridge	112080
20.2 cm	20 May 2008	Thornage Bridge	111290
19.4 cm	19 May 2008	Upstream Wiveton Bridge	112080
19.3 cm	9 Jul 1999	Cley Sluice	17754
19.2 cm	9 Jul 1999	Cley Sluice	17754
18.6 cm	9 May 2008	Upstream Glandford Mill	110959
18.4 cm	9 Jul 1999	Cley Sluice	17754
18.3 cm	19 May 2008	Upstream Wiveton Bridge	112080

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
D/s Hunworth railway bridge	22 Jun 2017	29 Jul 2021	2
Upstream Wiveton Bridge	13 Jul 1999	7 Jul 2017	4
Letheringsett	15 May 2008	19 Jun 2017	2
Upstream Glandford Mill	8 Jul 1999	14 Jun 2017	4
Hempstead Mill bridge	23 Jan 2003	5 Dec 2014	2
Upstream Thornage Ford	14 Jan 1988	24 May 2011	3
Thornage Bridge	20 May 2008	20 May 2008	1
Selbrigg Lake outflow	23 Jan 2003	23 Jan 2003	1
Cley Sluice	9 Jul 1999	9 Jul 1999	1

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

1988–2021

Survey records by year

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

188

089

090

091

092

093

094

095

096

097

098

399

000

001

102

203

004

005

006

007

508

009

010

211

012

013

114

015

016

417

018

019

020

121

Fish measured by surveyors

Measured length distribution

See how the 54 measured fish were spread across different length ranges.

Smallest: 5.5 cm
Lower quarter: 9.9 cm
Median: 15.4 cm
Upper quarter: 17.9 cm
Largest: 26.6 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 Glaven

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

Bullhead 3-spined stickleback European eel Brook lamprey Pike Roach

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 →