Perch · Perca fluviatilis

Perch in the River Wallers Haven

Largest measured perch: 36.5 cm

The largest perch measured in Environment Agency surveys of the River Wallers Haven was 36.5 cm, recorded at Horse Bridge on 7 September 2016.

Across 1,228 measured perch, the median measured length was 4.5 cm.

Surveyors recorded weights for 231 perch. The median was 0.1 oz (0.003 kg) and the largest recorded weight was 11.3 oz (0.319 kg).

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

See perch records across England →

Most recent observation14 October 2025Horse Bridge · 25 fish

Largest measured perch: 36.5 cm
Median length: 4.5 cm
Fish measured: 1,228
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
36.5 cm	7 Sept 2016	Horse Bridge	149221
29.5 cm	23 Oct 2009	Horse Bridge	120621
26.7 cm	17 Sept 2002	Upstream Boreham Bridge	72072
26.1 cm	22 Sept 2004	Upstream Boreham Bridge	82426
25 cm	29 Aug 2003	Upstream Boreham Bridge	76999
24.5 cm	29 Aug 2003	Upstream Boreham Bridge	76999
24.2 cm	9 Aug 2016	Downstream Tilley Bridge	148936
23.4 cm	29 Aug 2003	Upstream Boreham Bridge	76999
22 cm	9 Aug 2016	Downstream Tilley Bridge	148936
21.5 cm	4 Sept 2012	Pebsham Bridge	133239

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
Horse Bridge	18 Sept 2008	14 Oct 2025	6
Upstream Boreham Bridge	9 Nov 1999	9 Sept 2025	13
Downstream Tilley Bridge	29 Jun 2010	9 Aug 2016	2
Middle Bridge	1 Oct 2003	5 Jul 2016	3
Ash Bourne Stream	21 Jan 2000	18 Apr 2013	3
Pebsham Bridge	4 Sept 2012	4 Sept 2012	1
A259 Barnhorn Bridge	29 Jun 2010	29 Jun 2010	1
Downstream Boreham Bridge	20 May 1993	24 Jun 2010	2
Nunningham Stream	21 Jan 2000	21 Jan 2000	1

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

1993–2025

Survey records by year

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

193

094

095

096

097

098

199

200

001

102

203

204

105

106

107

208

209

310

111

212

213

014

015

416

017

018

219

020

021

022

023

024

225

Fish measured by surveyors

Measured length distribution

See how the 1,228 measured fish were spread across different length ranges.

Smallest: 2.6 cm
Lower quarter: 3.6 cm
Median: 4.5 cm
Upper quarter: 6.3 cm
Largest: 36.5 cm

0–99 mm

1091

100–199 mm

120

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 231 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.002 kg)
Median: 0.1 oz (0.003 kg)
Upper quarter: 0.2 oz (0.007 kg)
Heaviest: 11.3 oz (0.319 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Wallers Haven

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

European eel Roach Pike Common bream Gudgeon Bullhead

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 →