Perch · Perca fluviatilis

Perch in the Longford Stream

Largest measured perch: 18.7 cm

The largest perch measured in Environment Agency surveys of the Longford Stream was 18.7 cm, recorded at Cockfield House on 28 August 2012.

Across 28 measured perch, the median measured length was 13 cm.

Surveyors recorded weights for 3 perch. The median was 1.7 oz (0.048 kg) and the largest recorded weight was 1.9 oz (0.055 kg).

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

See perch records across England →

Most recent observation16 August 2016Sutton Hall · 2 fish

Largest measured perch: 18.7 cm
Median length: 13 cm
Fish measured: 28
Survey locations: 3

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
18.7 cm	28 Aug 2012	Cockfield House	133197
18.5 cm	16 Aug 2016	Sutton Hall	148938
17.6 cm	16 Aug 2016	Cockfield House	148937
16.1 cm	16 Aug 2016	Cockfield House	148937
15 cm	26 Sept 2006	Ridgelands	102541
14.9 cm	28 Aug 2012	Cockfield House	133197
14.4 cm	26 Sept 2006	Ridgelands	102541
14.2 cm	16 Aug 2016	Cockfield House	148937
14.1 cm	28 Aug 2012	Cockfield House	133197
14 cm	16 Aug 2016	Cockfield House	148937

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
Sutton Hall	16 Aug 2016	16 Aug 2016	1
Cockfield House	28 Aug 2012	16 Aug 2016	2
Ridgelands	26 Sept 2006	26 Sept 2006	1

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

2006–2016

Survey records by year

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

106

007

008

009

010

011

112

013

014

015

216

Fish measured by surveyors

Measured length distribution

See how the 28 measured fish were spread across different length ranges.

Smallest: 4.2 cm
Lower quarter: 11.8 cm
Median: 13 cm
Upper quarter: 14.3 cm
Largest: 18.7 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest: 1.4 oz (0.041 kg)
Lower quarter: 1.6 oz (0.0445 kg)
Median: 1.7 oz (0.048 kg)
Upper quarter: 1.8 oz (0.0515 kg)
Heaviest: 1.9 oz (0.055 kg)

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

More fish in this river

Explore the Longford Stream

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

Pike Roach Bullhead European eel

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 →