RiverFish

Perch · Perca fluviatilis

Perch in the River Washburn

Largest measured perch: 32.7 cm

The largest perch measured in Environment Agency surveys of the River Washburn was 32.7 cm, recorded at Upstream of Fewston Reservoir on 25 July 2001.

Across 729 measured perch, the median measured length was 12.7 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 Washburn.

See perch records across England →

Most recent observation26 August 2014D/s of Swinsty Reservoir · 6 fish
Largest measured perch
32.7 cm
Median length
12.7 cm
Fish measured
729
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
32.7 cm25 Jul 2001Upstream of Fewston Reservoir25670
25.1 cm27 Sept 1996Upstream of Fewston Reservoir110493
22.3 cm29 Aug 2002Leathley Bridge73506
21.6 cm6 Aug 2000D/s of Swinsty Reservoir110711
21 cm6 Aug 2000D/s of Swinsty Reservoir110711
20.6 cm6 Aug 2000D/s of Swinsty Reservoir110711
20.4 cm6 Aug 2000D/s of Swinsty Reservoir110711
20.4 cm1 Aug 2000Upstream of Fewston Reservoir110722
20.3 cm1 Aug 2000Upstream of Fewston Reservoir110722
19.9 cm25 Jul 2001Upstream of Fewston Reservoir25670

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
D/s of Swinsty Reservoir27 Sept 199626 Aug 20149
Leathley Bridge22 Jul 199814 Aug 20035
Upstream of Fewston Reservoir27 Sept 199625 Jul 20013
Downstream Thruscross Reservoir9 Mar 19979 Mar 19971

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

1996–2014

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 729 measured fish were spread across different length ranges.

Smallest
4.3 cm
Lower quarter
11.4 cm
Median
12.7 cm
Upper quarter
14.4 cm
Largest
32.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Washburn

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

Brown / sea trout Stone loach Minnow Bullhead Rainbow trout 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 →