Perch · Perca fluviatilis

Perch in the River Bulbourne

Largest measured perch: 28 cm

The largest perch measured in Environment Agency surveys of the River Bulbourne was 28 cm, recorded at Station Moor on 11 April 2011.

Across 183 measured perch, the median measured length was 13.7 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 Bulbourne.

See perch records across England →

Most recent observation14 May 2019Boxmoor u/s · 9 fish

Largest measured perch: 28 cm
Median length: 13.7 cm
Fish measured: 183
Survey locations: 4

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 cm	11 Apr 2011	Station Moor	126087
27.2 cm	11 Apr 2011	Station Moor	126087
27 cm	29 Apr 2016	Boxmoor d/s	148002
26.8 cm	3 May 2017	Boxmoor d/s	150377
26.4 cm	24 Apr 2015	Boxmoor d/s	144601
25.5 cm	24 Apr 2015	Boxmoor d/s	144601
25.5 cm	24 Apr 2015	Boxmoor u/s	144597
25.5 cm	11 Apr 2011	Station Moor	126087
23.9 cm	31 May 2018	Boxmoor u/s	152631
23.7 cm	24 Apr 2015	Boxmoor u/s	144597

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
Boxmoor u/s	24 Apr 2015	14 May 2019	6
Boxmoor d/s	24 Apr 2015	31 May 2018	4
Bank Mill Lane	18 Oct 2016	18 Oct 2016	1
Station Moor	11 Apr 2011	11 Apr 2011	1

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

2011–2019

Survey records by year

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

111

012

013

014

215

316

217

318

119

Fish measured by surveyors

Measured length distribution

See how the 183 measured fish were spread across different length ranges.

Smallest: 4.7 cm
Lower quarter: 8.7 cm
Median: 13.7 cm
Upper quarter: 16.6 cm
Largest: 28 cm

0–99 mm

100–199 mm

104

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Bulbourne

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

Chub Roach Dace Pike Gudgeon Bleak

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 →