Flounder · Platichthys flesus

Flounder in the River Steeping FMU

Largest measured flounder: 30 cm

The largest flounder measured in Environment Agency surveys of the River Steeping FMU was 30 cm, recorded at Thorpe Culvert on 9 June 2005.

Across 36 measured flounder, the median measured length was 7.8 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 Steeping FMU.

See flounder records across England →

Most recent observation9 June 2005Thorpe Culvert · 1 fish

Largest measured flounder: 30 cm
Median length: 7.8 cm
Fish measured: 36
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.

Length	Survey date	Survey location	Survey ID
30 cm	9 Jun 2005	Thorpe Culvert	84955
28.7 cm	1 Oct 1987	Steeping Outfall	58182
17.8 cm	1 Oct 1987	Steeping Outfall	58182
17.4 cm	1 Oct 1987	Steeping Outfall	58182
17.2 cm	1 Oct 1987	Steeping Outfall	58182
16.9 cm	1 Oct 1987	Steeping Outfall	58182
15.4 cm	30 Sept 1987	Clough House Farm	58181
9.5 cm	1 Oct 1987	Steeping Outfall	58182
9.3 cm	23 Apr 1996	Upstream Wheel Doors	58164
9.3 cm	23 Apr 1996	Upstream Wheel Doors	58164

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
Thorpe Culvert	9 Jun 2005	9 Jun 2005	1
Clough House Farm	30 Sept 1987	24 Apr 1996	2
Upstream Wheel Doors	5 Apr 1993	23 Apr 1996	2
Steeping Outfall	1 Oct 1987	1 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.

1987–2005

Survey records by year

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

287

088

089

090

091

092

193

094

095

296

097

098

099

000

001

002

003

004

105

Fish measured by surveyors

Measured length distribution

See how the 36 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 6.7 cm
Median: 7.8 cm
Upper quarter: 9.3 cm
Largest: 30 cm

0–99 mm

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 Steeping FMU

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

Roach Perch Ruffe Bleak Dace Pike

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 →