Flounder · Platichthys flesus

Flounder in the River Cam

Largest measured flounder: 31.5 cm

The largest flounder measured in Environment Agency surveys of the River Cam was 31.5 cm, recorded at u/s Pumping Station on 14 May 2002.

Across 8 measured flounder, the median measured length was 19.6 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 Cam.

See flounder records across England →

Most recent observation14 May 2002u/s Pumping Station · 7 fish

Largest measured flounder: 31.5 cm
Median length: 19.6 cm
Fish measured: 8
Survey locations: 3

Individual EA measurements

Largest measured flounder

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

Length	Survey date	Survey location	Survey ID
31.5 cm	14 May 2002	u/s Pumping Station	50080
26.5 cm	14 May 2002	u/s Pumping Station	50080
24.3 cm	14 May 2002	u/s Pumping Station	50080
22.1 cm	14 May 2002	u/s Pumping Station	50080
17.2 cm	14 May 2002	u/s Pumping Station	50080
16 cm	13 May 2002	Wicksters Brooks d/s to Glos Sharpness Canal	50020
14.1 cm	14 May 2002	u/s Pumping Station	50080
10.7 cm	14 May 2002	u/s Pumping Station	50080

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 surveyed	First recorded	Last recorded	Visits finding flounder
u/s Pumping Station	14 May 2002	14 May 2002	1
Wicksters Brooks d/s to Glos Sharpness Canal	13 May 2002	13 May 2002	1
Pumping station downstream to Wicksters brook conf	8 Jun 1989	8 Jun 1989	1

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

1989–2002

Survey records by year

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

189

090

091

092

093

094

095

096

097

098

099

000

001

202

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest: 10.7 cm
Lower quarter: 15.5 cm
Median: 19.7 cm
Upper quarter: 24.9 cm
Largest: 31.5 cm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Cam

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

European eel Brown / sea trout 3-spined stickleback Bullhead Roach Perch

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 →