RiverFish

Perch · Perca fluviatilis

Perch in the River Roding

Largest measured perch: 39 cm

The largest perch measured in Environment Agency surveys of the River Roding was 39 cm, recorded at Passingford Bridge on 6 September 2007.

Across 423 measured perch, the median measured length was 14.9 cm.

Surveyors recorded weights for 4 perch. The median was 1.3 oz (0.037 kg) and the largest recorded weight was 5.3 oz (0.15 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 Roding.

See perch records across England →

Most recent observation8 August 2024Roding Valley Nature Reserve · 3 fish
Largest measured perch
39 cm
Median length
14.9 cm
Fish measured
423
Survey locations
18

Individual EA measurements

Largest measured perch

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
39 cm6 Sept 2007Passingford Bridge106732
38.6 cm12 Aug 2004High Ongar (Ongar Bridge)81524
36.7 cm6 Aug 2024High Ongar (Ongar Bridge)166618
36.4 cm4 Oct 2002High Ongar (Ongar Bridge)72488
35.6 cm24 Sept 2002Wanstead Park72563
35.4 cm4 Oct 2002High Ongar (Ongar Bridge)72488
35.1 cm24 Sept 2002Wanstead Park72563
34.5 cm15 Sept 2006High Ongar (Ongar Bridge)101463
34.4 cm23 Aug 2018High Ongar (Ongar Bridge)153126
34.3 cm2 Jul 2009High Ongar (Ongar Bridge)117666

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 surveyedFirst recordedLast recordedVisits finding perch
Roding Valley Nature Reserve25 Sept 20028 Aug 20248
High Ongar (Ongar Bridge)4 Oct 20026 Aug 202413
Gang Bridge25 Mar 199015 Oct 20214
Crowther Nurseries18 Feb 199931 Aug 201813
Luxborough Lane30 Aug 20028 Sept 20163
Waples Mill9 Aug 20139 Aug 20131
Ilford Golf Course7 Jun 199213 Jul 20106
Mayes Brook23 Apr 200823 Apr 20081
Passingford Bridge28 Apr 19926 Sept 20073
Abridge5 Sept 20026 Sept 20065
Great Canfield26 Jul 200626 Jul 20061
Wanstead Park24 May 19928 Nov 20055
Redbridge11 Feb 199917 Sept 20022
Loughton6 Sept 20026 Sept 20021
Littlebury Mill4 Sept 20024 Sept 20021
Fyfield2 Mar 19992 Mar 19991
Barking Creek - Six gates pool13 Jul 199313 Jul 19931
Barking Creek - A13 road bridge13 Jul 199313 Jul 19931

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

1990–2024

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 423 measured fish were spread across different length ranges.

Smallest
1.2 cm
Lower quarter
11 cm
Median
14.9 cm
Upper quarter
21.3 cm
Largest
39 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 4 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.3 oz (0.008 kg)
Lower quarter
0.6 oz (0.017 kg)
Median
1.3 oz (0.037 kg)
Upper quarter
2.8 oz (0.078 kg)
Heaviest
5.3 oz (0.15 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 Roding

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

Roach Dace Minnow Gudgeon Pike Chub

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 →