Flounder · Platichthys flesus

Flounder in the River Tidal Waveney

Largest measured flounder: 26.7 cm

The largest flounder measured in Environment Agency surveys of the River Tidal Waveney was 26.7 cm, recorded at Somerleyton Marshes on 23 October 1996.

Across 413 measured flounder, the median measured length was 11.2 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 Tidal Waveney.

See flounder records across England →

Most recent observation5 October 1999Downstream Worlingham Road End · 1 fish

Largest measured flounder: 26.7 cm
Median length: 11.2 cm
Fish measured: 413
Survey locations: 13

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
26.7 cm	23 Oct 1996	Somerleyton Marshes	17101
24.6 cm	23 Oct 1996	Upstream Haddiscoe Bridge	17103
24 cm	12 Oct 1987	Downstream Landspring Beck	17082
23 cm	12 Oct 1987	Upstream Haddiscoe Bridge	17083
22.8 cm	12 Oct 1987	Upstream Haddiscoe Bridge	17083
22.8 cm	12 Oct 1987	Downstream Landspring Beck	17082
22.7 cm	29 Sept 1999	Downstream Landspring Beck	17784
22.6 cm	12 Oct 1987	Upstream Haddiscoe Bridge	17083
22 cm	12 Oct 1987	Upstream Haddiscoe Bridge	17083
21.8 cm	12 Oct 1987	Upstream Haddiscoe Bridge	17083

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
Downstream Worlingham Road End	14 Oct 1987	5 Oct 1999	2
North Cove	14 Oct 1987	30 Sept 1999	3
Upstream Haddiscoe Bridge	12 Oct 1987	29 Sept 1999	4
Somerleyton Marshes	12 Oct 1987	29 Sept 1999	4
Downstream Landspring Beck	12 Oct 1987	29 Sept 1999	3
Upstream Oulton Dyke	13 Oct 1987	23 Oct 1996	3
Carlton Coalville	13 Oct 1987	23 Oct 1996	3
Aldeby Swing Bridge	14 Oct 1987	4 Nov 1994	2
Oulton Dyke	13 Oct 1987	2 Nov 1994	2
Downstream St. Olaves Bridge	12 Oct 1987	1 Nov 1994	2
Downstream Pink House	15 Oct 1987	15 Oct 1987	1
Downstream A146 Bridge	15 Oct 1987	15 Oct 1987	1
Truckers Knoll	14 Oct 1987	14 Oct 1987	1

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

1987–1999

Survey records by year

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

1387

088

089

090

091

092

093

994

095

496

097

098

599

Fish measured by surveyors

Measured length distribution

See how the 413 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 7.7 cm
Median: 11.2 cm
Upper quarter: 13.5 cm
Largest: 26.7 cm

0–99 mm

155

100–199 mm

239

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Tidal Waveney

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

Roach Common bream Ruffe Gudgeon Perch Smelt

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 →