RiverFish

Perch · Perca fluviatilis

Perch in the Great Eau FMU

Largest measured perch: 36.8 cm

The largest perch measured in Environment Agency surveys of the Great Eau FMU was 36.8 cm, recorded at Gayton Engine on 1 April 2014.

Across 153 measured perch, the median measured length was 14.1 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Great Eau FMU.

See perch records across England →

Most recent observation1 June 2022Claythorpe Gauging Station · 1 fish
Largest measured perch
36.8 cm
Median length
14.1 cm
Fish measured
153
Survey locations
10

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
36.8 cm1 Apr 2014Gayton Engine140655
34 cm21 May 2009Cloves Bridge Upstream117282
26.8 cm19 Oct 1989Woods Farm57767
24.3 cm29 Sept 1995Withern Road Bridge58115
24.1 cm1 Apr 2014Gayton Engine140655
24.1 cm29 Sept 1995Withern Road Bridge58115
22.7 cm7 Apr 1992Claythorpe Gauging Station57781
22.3 cm6 Jun 1995Upstream R/B Sea Doors57804
21.3 cm9 Sept 1994Withern Road Bridge58091
18.7 cm9 Sept 1994Withern Road Bridge58091

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
Claythorpe Gauging Station7 Apr 19921 Jun 20225
Sea View Road2 Apr 20142 Apr 20141
Cloves Bridge Upstream11 May 19922 Apr 20144
Gayton Engine29 Sept 19941 Apr 20143
Withern Road Bridge9 Sept 199429 Sept 19952
Upstream R/B Sea Doors6 Jun 19956 Jun 19951
Will Row14 Sept 199414 Sept 19941
Gayton Le Marsh12 Sept 199412 Sept 19941
Barfen Farm12 Sept 199412 Sept 19941
Woods Farm19 Oct 19893 Apr 19922

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

1989–2022

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 153 measured fish were spread across different length ranges.

Smallest
7.1 cm
Lower quarter
12.5 cm
Median
14.1 cm
Upper quarter
15.6 cm
Largest
36.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Great Eau FMU

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

European eel 3-spined stickleback Stone loach Roach Pike Dace

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 →