RiverFish

Perch · Perca fluviatilis

Perch in the River Tees Barrage

Largest measured perch: 29.7 cm

The largest perch measured in Environment Agency surveys of the River Tees Barrage was 29.7 cm, recorded at Warm up pool on 19 May 2026.

Across 106 measured perch, the median measured length was 5.9 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 Tees Barrage.

See perch records across England →

Most recent observation19 May 2026Warm up pool · 40 fish
Largest measured perch
29.7 cm
Median length
5.9 cm
Fish measured
106
Survey locations
1

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
29.7 cm19 May 2026Warm up pool181372
25.3 cm19 May 2026Warm up pool181372
22.6 cm4 Jun 2019Warm up pool154674
19.3 cm19 May 2026Warm up pool181372
19.2 cm19 May 2026Warm up pool181372
18.9 cm19 May 2026Warm up pool181372
18.2 cm19 May 2026Warm up pool181372
17.3 cm19 May 2026Warm up pool181372
16.8 cm2 Nov 2023Warm up pool163948
16.5 cm2 Nov 2023Warm up pool163948

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
Warm up pool31 May 201619 May 20269

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

2016–2026

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 106 measured fish were spread across different length ranges.

Smallest
3.3 cm
Lower quarter
5.4 cm
Median
5.9 cm
Upper quarter
11.4 cm
Largest
29.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Tees Barrage

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

European eel Roach Dace Common bream Chub

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 →