RiverFish

Flounder · Platichthys flesus

Flounder in the River Delph

Largest measured flounder: 14 cm

The largest flounder measured in Environment Agency surveys of the River Delph was 14 cm, recorded at Welmore Lake Sluice on 27 May 2011.

Across 17 measured flounder, the median measured length was 8.3 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 Delph.

See flounder records across England →

Most recent observation27 May 2011Welmore Lake Sluice · 1 fish
Largest measured flounder
14 cm
Median length
8.3 cm
Fish measured
17
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.

LengthSurvey dateSurvey locationSurvey ID
14 cm27 May 2011Welmore Lake Sluice126986
11.3 cm9 Jan 1989Welmore Lake Sluice29661
9.8 cm18 Jun 1993Welmore Lake Sluice29670
9 cm21 May 2003Earith75968
8.8 cm18 Jun 1993Welmore Lake Sluice29670
8.8 cm10 Jan 1989Old Hundred Farm29660
8.8 cm9 Jan 1989Welmore Lake Sluice29661
8.3 cm29 Jun 1993Welches Dam29666
8.3 cm9 Jan 1989Welmore Lake Sluice29661
7.3 cm18 Jun 1993Welmore Lake Sluice29670

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 surveyedFirst recordedLast recordedVisits finding flounder
Welmore Lake Sluice9 Jan 198927 May 20114
Earith21 May 200321 May 20031
Welches Dam29 Jun 199329 Jun 19931
Old Hundred Farm10 Jan 198910 Jan 19891

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

1989–2011

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 17 measured fish were spread across different length ranges.

Smallest
5.8 cm
Lower quarter
6.8 cm
Median
8.3 cm
Upper quarter
8.8 cm
Largest
14 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Delph

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

Perch Roach Pike Rudd Common bream Ruffe

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 →