RiverFish

Flounder · Platichthys flesus

Flounder in the River Welland

Largest measured flounder: 28.5 cm

The largest flounder measured in Environment Agency surveys of the River Welland was 28.5 cm, recorded at Wisbech Road on 10 June 1993.

Across 57 measured flounder, the median measured length was 12 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 Welland.

See flounder records across England →

Most recent observation24 September 1996Wisbech Road · 16 fish
Largest measured flounder
28.5 cm
Median length
12 cm
Fish measured
57
Survey locations
4

Individual EA measurements

Largest measured flounder

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
28.5 cm10 Jun 1993Wisbech Road54209
28 cm10 Jun 1993Wisbech Road54209
27.5 cm9 Jun 1993Downstream Clay Lake Bridge54207
24.5 cm10 Jun 1993Wisbech Road54209
23.5 cm10 Jun 1993Wisbech Road54209
16 cm28 Jun 1993No 2 Clay Lake54208
16 cm28 Jun 1993No 2 Clay Lake54208
16 cm10 Jun 1993Wisbech Road54209
15 cm9 Jun 1993Downstream Clay Lake Bridge54207
15 cm9 Jun 1993Downstream Clay Lake Bridge54207

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where flounder were found

Each point marks a survey location with at least one flounder 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 flounder
Wisbech Road10 Jun 199324 Sept 19962
Downstream Clay Lake Bridge9 Jun 199318 Sept 19962
No 2 Clay Lake28 Jun 199328 Jun 19931
Welland Yacht Club11 Oct 199011 Oct 19901

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

1990–1996

Survey records by year

Each bar shows how many survey visits recorded flounder that year.

Fish measured by surveyors

Measured length distribution

See how the 57 measured fish were spread across different length ranges.

Smallest
5.5 cm
Lower quarter
9 cm
Median
12 cm
Upper quarter
13 cm
Largest
28.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Welland

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

Pike Dace European eel Roach Perch 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 →