RiverFish

Perch · Perca fluviatilis

Perch in the River Glaze

Largest measured perch: 33 cm

The largest perch measured in Environment Agency surveys of the River Glaze was 33 cm, recorded at Glgl20 on 12 May 2016.

Across 232 measured perch, the median measured length was 11 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 Glaze.

See perch records across England →

Most recent observation8 May 2025Glgl30 · 13 fish
Largest measured perch
33 cm
Median length
11 cm
Fish measured
232
Survey locations
8

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
33 cm12 May 2016Glgl20148043
30.2 cm20 May 2008Glgl10114093
27.3 cm27 Apr 2010Glgl20121441
26.6 cm23 Apr 2009Glgl20117303
25.9 cm23 Apr 2009Glgl20117303
25.5 cm28 Apr 2016Glgl10148041
25.3 cm24 Apr 2010Glgl30124099
25.3 cm20 May 2008Glgl20114096
25.2 cm8 May 2025Glgl30179714
24.7 cm8 May 2025Glgl30179714

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
Glgl3024 Apr 20108 May 20253
Glgl127 May 20257 May 20251
Glgl7.51 Jul 20196 May 20253
Glgl0515 Jun 199914 May 20197
Glgl2020 May 200812 May 20165
Glgl1020 May 200828 Apr 20164
Glgl2519 May 200822 Apr 20092
Glgl1521 May 200821 May 20081

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

1999–2025

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 232 measured fish were spread across different length ranges.

Smallest
6.5 cm
Lower quarter
9.8 cm
Median
11 cm
Upper quarter
16 cm
Largest
33 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Glaze

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

European eel Gudgeon Roach Chub Dace Pike

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 →