Perch · Perca fluviatilis

Perch in the River Arun

Largest measured perch: 30.9 cm

The largest perch measured in Environment Agency surveys of the River Arun was 30.9 cm, recorded at Roman Station on 30 July 2002.

Across 331 measured perch, the median measured length was 13.5 cm.

Surveyors recorded weights for 193 perch. The median was 1.2 oz (0.035 kg) and the largest recorded weight was 1 lb 3.5 oz (0.553 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 Arun.

See perch records across England →

Most recent observation8 July 2025Pallingham · 2 fish

Largest measured perch: 30.9 cm
Median length: 13.5 cm
Fish measured: 331
Survey locations: 14

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
30.9 cm	30 Jul 2002	Roman Station	72058
30.4 cm	11 Aug 2009	Horsham STW	120804
30.4 cm	30 Jul 2002	Roman Station	72058
30 cm	4 Sept 2014	Bignor Farm	142644
29.9 cm	25 Jul 2006	Roman Station	102008
29.9 cm	25 Jul 2006	Roman Station	102008
28.4 cm	3 Aug 2007	Roman Station	106922
27.8 cm	26 Jul 2004	Roman Station	80833
27 cm	28 Jul 2003	Roman Station	76617
26.6 cm	27 Sept 2007	Bucks Green	107319

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
Pallingham	18 Sept 2003	8 Jul 2025	13
Bignor Farm	12 Sept 2002	12 Sept 2024	7
Alfoldean Weir Upstream	12 Jul 2024	12 Jul 2024	1
Pulborough Cut	28 Sept 2007	5 Sept 2022	6
Chesworth Farm, Downstream Chesworth House	20 Sept 2012	4 Aug 2016	2
Roman Station	30 Jul 2002	26 Jul 2016	12
Horsham STW	3 Aug 2005	26 Jul 2016	8
Theale Farm	9 Sept 2014	9 Sept 2014	1
Bucks Green	24 Jul 2003	27 Sept 2007	4
Wellcross Bridge	2 Aug 2007	2 Aug 2007	1
Newbridge	30 Jul 2002	27 Jul 2007	4
Chesworth Farm	2 Aug 2002	14 Aug 2006	3
Gibbons Mill	31 Jul 2002	26 Jul 2006	4
Horsham-by-Pass sq	2 Aug 2005	2 Aug 2005	1

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

2002–2025

Survey records by year

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

502

603

704

505

606

807

408

309

310

011

312

313

214

015

516

017

018

219

020

021

222

023

224

125

Fish measured by surveyors

Measured length distribution

See how the 331 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 9.9 cm
Median: 13.5 cm
Upper quarter: 17.5 cm
Largest: 30.9 cm

0–99 mm

100–199 mm

199

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 193 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.4 oz (0.01 kg)
Median: 1.2 oz (0.035 kg)
Upper quarter: 3.2 oz (0.09 kg)
Heaviest: 1 lb 3.5 oz (0.553 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 Arun

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

Roach Chub Gudgeon European eel Minnow 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 →