Flounder · Platichthys flesus

Flounder in the River Douglas

Largest measured flounder: 26 cm

The largest flounder measured in Environment Agency surveys of the River Douglas was 26 cm, recorded at Grimshaw Green on 5 June 1995.

Across 7 measured flounder, the median measured length was 22.5 cm.

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

See flounder records across England →

Most recent observation21 September 2016Appley Bridge · 1 fish

Largest measured flounder: 26 cm
Median length: 22.5 cm
Fish measured: 7
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
26 cm	5 Jun 1995	Grimshaw Green	113045
25 cm	23 May 1995	Downstream Appley Bridge	113064
23.5 cm	5 Jun 1995	Grimshaw Green	113045
22.5 cm	5 Jun 1995	Grimshaw Green	113045
21.5 cm	13 Jun 1995	Snipe Hall	113042
19.8 cm	21 Sept 2016	Appley Bridge	149381
14 cm	13 Jun 1995	Snipe Hall	113042

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
Appley Bridge	21 Sept 2016	21 Sept 2016	1
Snipe Hall	13 Jun 1995	13 Jun 1995	1
Grimshaw Green	5 Jun 1995	5 Jun 1995	1
Downstream Appley Bridge	23 May 1995	23 May 1995	1

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

1995–2016

Survey records by year

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

395

096

097

098

099

000

001

002

003

004

005

006

007

008

009

010

011

012

013

014

015

116

Fish measured by surveyors

Measured length distribution

See how the 7 measured fish were spread across different length ranges.

Smallest: 14 cm
Lower quarter: 20.7 cm
Median: 22.5 cm
Upper quarter: 24.3 cm
Largest: 26 cm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Douglas

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

Roach Chub Gudgeon Dace European eel Perch

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 →