RiverFish

Perch · Perca fluviatilis

Perch in the River Ouse/Ure eel surveys

Largest measured perch: 26.7 cm

The largest perch measured in Environment Agency surveys of the River Ouse/Ure eel surveys was 26.7 cm, recorded at Upstream Linton Lock Fyke Nets on 13 June 2018.

Across 29 measured perch, the median measured length was 13.6 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 Ouse/Ure eel surveys.

See perch records across England →

Most recent observation1 June 2026River Kyle Youlton Lodge · 1 fish
Largest measured perch
26.7 cm
Median length
13.6 cm
Fish measured
29
Survey locations
7

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
26.7 cm13 Jun 2018Upstream Linton Lock Fyke Nets152638
26.2 cm1 Jun 2026Upstream Linton Lock Fyke Nets181551
26.1 cm14 Jun 2016Selby Dam at Meadway148232
26 cm3 Jun 2024Upstream Linton Lock Fyke Nets165112
23.8 cm13 Jun 2018Upstream Linton Lock Fyke Nets152638
23 cm1 Jun 2026Upstream Linton Lock Fyke Nets181551
22.5 cm17 Jun 2014Overton Ings Fyke nets141737
22 cm13 Jun 2018Upstream Linton Lock Fyke Nets152638
18.3 cm17 Jun 2014Overton Ings Fyke nets141737
18.2 cm15 Jun 2022Overton Ings Fyke nets161184

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
Upstream Linton Lock Fyke Nets16 Jun 20141 Jun 20264
River Kyle Youlton Lodge1 Jun 20261 Jun 20261
Holbeck at Boroughbridge Road Bridge8 Jun 201010 Jun 20244
Overton Ings Fyke nets17 Jun 20144 Jun 20244
Selby Dam at Meadway14 Jun 201614 Jun 20161
Stillingfleet eel survey4 Jun 20144 Jun 20141
River Tutt at St Helena's Weir16 Jul 201216 Jul 20121

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

2010–2026

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 29 measured fish were spread across different length ranges.

Smallest
4.7 cm
Lower quarter
8.3 cm
Median
13.6 cm
Upper quarter
22 cm
Largest
26.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ouse/Ure eel surveys

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

European eel 3-spined stickleback Bullhead Stone loach Roach Gudgeon

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 →