Perch · Perca fluviatilis

Perch in the River Main Porth

Largest measured perch: 18.8 cm

The largest perch measured in Environment Agency surveys of the River Main Porth was 18.8 cm, recorded at Rialton Bridge on 15 September 2006.

Across 6 measured perch, the median measured length was 13.2 cm.

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

See perch records across England →

Most recent observation12 June 2015Rialton Bridge · 2 fish

Largest measured perch: 18.8 cm
Median length: 13.2 cm
Fish measured: 6
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
18.8 cm	15 Sept 2006	Rialton Bridge	101517
14.8 cm	12 Jun 2015	Rialton Bridge	144939
13.4 cm	12 Jun 2015	Rialton Bridge	144939
13.1 cm	15 Sept 2006	Rialton Bridge	101517
12.7 cm	15 Sept 2006	Rialton Bridge	101517
12.4 cm	15 Sept 2006	Rialton Bridge	101517

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
Rialton Bridge	10 Jun 2005	12 Jun 2015	3
Melancoose	23 Aug 2006	23 Aug 2006	1
Tregoose Ford Bridge	14 Jun 2005	16 Aug 2006	2

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

2005–2015

Survey records by year

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

205

306

007

008

009

010

011

012

013

014

115

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 12.4 cm
Lower quarter: 12.8 cm
Median: 13.3 cm
Upper quarter: 14.5 cm
Largest: 18.8 cm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Porth

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

Brown / sea trout European eel Roach

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 →