Flounder · Platichthys flesus

Flounder in the East Halton Beck FMU

Largest measured flounder: 35.8 cm

The largest flounder measured in Environment Agency surveys of the East Halton Beck FMU was 35.8 cm, recorded at College Bridge on 30 May 2007.

Across 219 measured flounder, the median measured length was 12.1 cm.

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

See flounder records across England →

Most recent observation22 July 2021College Bridge · 4 fish

Largest measured flounder: 35.8 cm
Median length: 12.1 cm
Fish measured: 219
Survey locations: 2

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
35.8 cm	30 May 2007	College Bridge	105486
34.8 cm	30 May 2007	College Bridge	105486
31.7 cm	30 May 2007	College Bridge	105486
29.7 cm	30 May 2007	College Bridge	105486
28.7 cm	30 May 2007	College Bridge	105486
28.7 cm	30 May 2007	College Bridge	105486
28 cm	30 May 2007	College Bridge	105486
26.2 cm	30 May 2007	College Bridge	105486
21.8 cm	30 May 2007	College Bridge	105486
21.4 cm	30 May 2007	College Bridge	105486

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
College Bridge	30 May 2007	22 Jul 2021	6
The Grange	14 Sept 1995	14 Sept 1995	1

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

1995–2021

Survey records by year

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

195

096

097

098

099

000

001

002

003

004

005

006

107

008

009

010

111

012

113

014

115

016

017

118

019

020

121

Fish measured by surveyors

Measured length distribution

See how the 219 measured fish were spread across different length ranges.

Smallest: 4.7 cm
Lower quarter: 9.4 cm
Median: 12.1 cm
Upper quarter: 14.6 cm
Largest: 35.8 cm

0–99 mm

100–199 mm

132

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the East Halton Beck FMU

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

3-spined stickleback European eel

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 →