RiverFish

Perch · Perca fluviatilis

Perch in the River Main Tamar

Largest measured perch: 20.7 cm

The largest perch measured in Environment Agency surveys of the River Main Tamar was 20.7 cm, recorded at Tamarstone on 25 August 2017.

Across 81 measured perch, the median measured length was 6.7 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 Tamar.

See perch records across England →

Most recent observation7 July 2023Tamarstone · 2 fish
Largest measured perch
20.7 cm
Median length
6.7 cm
Fish measured
81
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.

LengthSurvey dateSurvey locationSurvey ID
20.7 cm25 Aug 2017Tamarstone151898
19.7 cm23 Aug 2016Dexbeer149147
15 cm4 Aug 2010Dexbeer123443
13.6 cm21 Jul 2014u/s North Tamerton141860
13.6 cm21 Jul 2014u/s North Tamerton141860
13.4 cm4 Aug 2010Dexbeer123443
13 cm11 Jul 2011Tamarstone126910
12.8 cm22 Jul 2016Tamarstone148697
12.7 cm7 Jul 2023Tamarstone162764
12.7 cm22 Jul 2016Tamarstone148697

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
Tamarstone23 Jul 20087 Jul 20236
Dexbeer4 Aug 20106 Sept 20223
Gunnislake Weir Index River Fish Trap27 Aug 201517 Oct 20184
u/s North Tamerton31 Jul 201321 Jul 20142

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

2008–2023

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 81 measured fish were spread across different length ranges.

Smallest
5.4 cm
Lower quarter
6.1 cm
Median
6.7 cm
Upper quarter
10.6 cm
Largest
20.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Tamar

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

Bullhead Stone loach Atlantic salmon Brown / sea trout Minnow 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 →