RiverFish

Flounder · Platichthys flesus

Flounder in the River Tidal Ant

Largest measured flounder: 13.4 cm

The largest flounder measured in Environment Agency surveys of the River Tidal Ant was 13.4 cm, recorded at Johnson Street on 3 August 2000.

Across 151 measured flounder, the median measured length was 4.9 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 Ant.

See flounder records across England →

Most recent observation9 August 2000Downstream Irstead Church · 1 fish
Largest measured flounder
13.4 cm
Median length
4.9 cm
Fish measured
151
Survey locations
5

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
13.4 cm3 Aug 2000Johnson Street18754
13.2 cm3 Aug 2000Johnson Street18754
12.7 cm3 Aug 2000Johnson Street18754
11.1 cm13 Jul 2000Upstream Ludham Bridge18755
9.7 cm13 Jul 2000Upstream Ludham Bridge18755
9.7 cm11 Jul 2000Upstream Ant Mouth18757
9.4 cm13 Jul 2000Upstream Ludham Bridge18755
7.2 cm30 Jul 1996Downstream Irstead Church16708
7 cm13 Jul 2000Upstream Ludham Bridge18755
6.5 cm30 Jul 1996Downstream Ludham Bridge16710

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
Downstream Irstead Church30 Jul 19969 Aug 20002
Johnson Street30 Jul 19963 Aug 20002
Upstream Ludham Bridge13 Jul 200013 Jul 20001
Downstream Ludham Bridge30 Jul 199613 Jul 20002
Upstream Ant Mouth11 Jul 200011 Jul 20001

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

1996–2000

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 151 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
4.2 cm
Median
4.9 cm
Upper quarter
5.5 cm
Largest
13.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Tidal Ant

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

Perch Roach Common bream Ruffe Gudgeon 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 →