RiverFish

Flounder · Platichthys flesus

Flounder in the Counter Drain

Largest measured flounder: 15.8 cm

The largest flounder measured in Environment Agency surveys of the Counter Drain was 15.8 cm, recorded at Salters Lode on 14 May 1997.

Across 111 measured flounder, the median measured length was 7.5 cm.

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

See flounder records across England →

Most recent observation31 March 2026Salters Lode · 1 fish
Largest measured flounder
15.8 cm
Median length
7.5 cm
Fish measured
111
Survey locations
1

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
15.8 cm14 May 1997Salters Lode29648
12.4 cm28 Mar 2014Salters Lode140562
11.8 cm28 Mar 2014Salters Lode140562
11.4 cm28 Mar 2014Salters Lode140562
11.3 cm25 Apr 2017Salters Lode150367
11.3 cm25 Apr 2017Salters Lode150367
11.3 cm28 Mar 2014Salters Lode140562
11.2 cm28 Mar 2014Salters Lode140562
11 cm28 Mar 2014Salters Lode140562
10.9 cm25 Apr 2017Salters Lode150367

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
Salters Lode22 Apr 198831 Mar 20268

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

1988–2026

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 111 measured fish were spread across different length ranges.

Smallest
4.3 cm
Lower quarter
6.8 cm
Median
7.5 cm
Upper quarter
9.3 cm
Largest
15.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Counter Drain

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

Spined loach Perch Pike Roach Common bream Tench

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 →