Perch · Perca fluviatilis

Perch in the Main River Marden

Largest measured perch: 34.8 cm

The largest perch measured in Environment Agency surveys of the Main River Marden was 34.8 cm, recorded at New Leaze Farm on 19 July 2006.

Across 20 measured perch, the median measured length was 15.9 cm.

Surveyors recorded weights for 17 perch. The median was 2 oz (0.056 kg) and the largest recorded weight was 1 lb 7.6 oz (0.669 kg).

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

See perch records across England →

Most recent observation11 October 2016Calne STW (Te) · 2 fish

Largest measured perch: 34.8 cm
Median length: 15.9 cm
Fish measured: 20
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
34.8 cm	19 Jul 2006	New Leaze Farm	100216
25.5 cm	19 Jul 2006	New Leaze Farm	100216
24.5 cm	19 Jul 2006	New Leaze Farm	100216
23 cm	19 May 2011	Stanley	126400
19.6 cm	11 Oct 2016	Calne STW (Te)	149660
19.5 cm	15 Oct 1997	New Leaze Farm	77058
18.1 cm	11 Oct 2016	Calne STW (Te)	149660
17.7 cm	18 Aug 2004	New Leaze Farm	81343
17.3 cm	13 May 1998	Downstream Calne	77063
16.4 cm	18 Aug 2004	New Leaze Farm	81343

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
Calne STW (Te)	11 Oct 2016	11 Oct 2016	1
Stanley	19 May 2011	19 May 2011	1
New Leaze Farm	15 Oct 1997	19 Jul 2006	3
Downstream Calne	13 May 1998	13 May 1998	1

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

1997–2016

Survey records by year

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

197

198

099

000

001

002

003

104

005

106

007

008

009

010

111

012

013

014

015

116

Fish measured by surveyors

Measured length distribution

See how the 20 measured fish were spread across different length ranges.

Smallest: 12.7 cm
Lower quarter: 14 cm
Median: 16 cm
Upper quarter: 19.5 cm
Largest: 34.8 cm

100–199 mm

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

Lightest: 1.1 oz (0.03 kg)
Lower quarter: 1.4 oz (0.04 kg)
Median: 2 oz (0.056 kg)
Upper quarter: 3.5 oz (0.1 kg)
Heaviest: 1 lb 7.6 oz (0.669 kg)

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

More fish in this river

Explore the Main River Marden

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

Bullhead Brown / sea trout Minnow Roach Gudgeon Dace

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 →