Flounder · Platichthys flesus

Flounder in the River Arun

Largest measured flounder: 8.5 cm

The largest flounder measured in Environment Agency surveys of the River Arun was 8.5 cm, recorded at Pallingham on 16 July 2019.

Across 23 measured flounder, the median measured length was 6.4 cm.

Surveyors recorded weights for 3 flounder. The median was 0.1 oz (0.002 kg) and the largest recorded weight was 0.1 oz (0.003 kg).

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

See flounder records across England →

Most recent observation16 July 2019Pallingham · 1 fish

Largest measured flounder: 8.5 cm
Median length: 6.4 cm
Fish measured: 23
Survey locations: 2

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
8.5 cm	16 Jul 2019	Pallingham	154810
7.6 cm	15 Sept 2010	Pulborough Cut	125557
7.2 cm	15 Sept 2010	Pulborough Cut	125557
6.9 cm	15 Sept 2010	Pulborough Cut	125557
6.9 cm	15 Sept 2010	Pulborough Cut	125557
6.8 cm	25 Sept 2013	Pulborough Cut	138901
6.8 cm	15 Sept 2010	Pulborough Cut	125557
6.7 cm	15 Sept 2010	Pulborough Cut	125557
6.6 cm	25 Sept 2013	Pulborough Cut	138901
6.6 cm	25 Sept 2013	Pulborough Cut	138901

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
Pallingham	18 Sept 2003	16 Jul 2019	2
Pulborough Cut	28 Sept 2007	25 Sept 2013	3

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

2003–2019

Survey records by year

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

103

004

005

006

107

008

009

110

011

012

113

014

015

016

017

018

119

Fish measured by surveyors

Measured length distribution

See how the 23 measured fish were spread across different length ranges.

Smallest: 3.2 cm
Lower quarter: 4.3 cm
Median: 6.4 cm
Upper quarter: 6.8 cm
Largest: 8.5 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 flounder. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.0015 kg)
Median: 0.1 oz (0.002 kg)
Upper quarter: 0.1 oz (0.0025 kg)
Heaviest: 0.1 oz (0.003 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Arun

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

Roach Chub Gudgeon European eel Minnow 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 →