Perch · Perca fluviatilis

Perch in the Berwick Brook

Largest measured perch: 28.6 cm

The largest perch measured in Environment Agency surveys of the Berwick Brook was 28.6 cm, recorded at Birlingham on 29 August 2007.

Across 24 measured perch, the median measured length was 13.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Berwick Brook.

See perch records across England →

Most recent observation24 June 2010Birlingham · 6 fish

Largest measured perch: 28.6 cm
Median length: 13.6 cm
Fish measured: 24
Survey locations: 1

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
28.6 cm	29 Aug 2007	Birlingham	106491
21.4 cm	29 Aug 2007	Birlingham	106491
20.6 cm	29 Aug 2007	Birlingham	106491
20.5 cm	14 Jul 2009	Birlingham	117823
19.1 cm	29 Aug 2007	Birlingham	106491
18.9 cm	14 Jul 2009	Birlingham	117823
18.3 cm	29 Aug 2007	Birlingham	106491
17.2 cm	14 Jul 2009	Birlingham	117823
16 cm	14 Jul 2009	Birlingham	117823
16 cm	14 Jul 2009	Birlingham	117823

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
Birlingham	26 Apr 1989	24 Jun 2010	5

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

1989–2010

Survey records by year

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

189

090

091

092

093

094

095

096

097

098

099

000

001

002

003

004

005

006

107

108

109

110

Fish measured by surveyors

Measured length distribution

See how the 24 measured fish were spread across different length ranges.

Smallest: 7.5 cm
Lower quarter: 13 cm
Median: 13.6 cm
Upper quarter: 18.5 cm
Largest: 28.6 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 Berwick Brook

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

Chub Dace 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 →