Flounder · Platichthys flesus

Flounder in the Buck Beck

Largest measured flounder: 21.9 cm

The largest flounder measured in Environment Agency surveys of the Buck Beck was 21.9 cm, recorded at Cleethorpes on 18 April 2008.

Across 26 measured flounder, the median measured length was 13.7 cm.

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

See flounder records across England →

Most recent observation7 April 2015Humberstone · 1 fish

Largest measured flounder: 21.9 cm
Median length: 13.7 cm
Fish measured: 26
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
21.9 cm	18 Apr 2008	Cleethorpes	110827
21.1 cm	18 Apr 2008	Cleethorpes	110827
17.8 cm	15 Mar 2013	Cleethorpes	135790
17.6 cm	15 Mar 2013	Cleethorpes	135790
17.4 cm	7 Apr 2015	Cleethorpes	144551
16.9 cm	7 Apr 2015	Cleethorpes	144551
16.2 cm	7 Apr 2015	Humberstone	144552
15.9 cm	15 Mar 2013	Cleethorpes	135790
14.6 cm	18 Apr 2008	Cleethorpes	110827
14.5 cm	18 Apr 2008	Cleethorpes	110827

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
Humberstone	15 Mar 2013	7 Apr 2015	2
Cleethorpes	18 Apr 2008	7 Apr 2015	3

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

2008–2015

Survey records by year

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

108

009

010

011

012

213

014

215

Fish measured by surveyors

Measured length distribution

See how the 26 measured fish were spread across different length ranges.

Smallest: 8.1 cm
Lower quarter: 12 cm
Median: 13.7 cm
Upper quarter: 16.1 cm
Largest: 21.9 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Buck Beck

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

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 →