Flounder · Platichthys flesus

Flounder in the River Hickling Broad

Largest measured flounder: 21 cm

The largest flounder measured in Environment Agency surveys of the River Hickling Broad was 21 cm, recorded at 71 on 26 September 1989.

Across 246 measured flounder, the median measured length was 8.6 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 Hickling Broad.

See flounder records across England →

Most recent observation11 February 2015Catfield Dyke · 1 fish

Largest measured flounder: 21 cm
Median length: 8.6 cm
Fish measured: 246
Survey locations: 12

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
21 cm	26 Sept 1989	71	16957
19.8 cm	4 Sept 1989	69	16955
18.8 cm	13 Oct 1986	75	16947
17.5 cm	8 Oct 1986	66	16938
17.3 cm	30 Aug 1989	64	16950
16.7 cm	4 Sept 1989	70	16956
16 cm	16 Sept 1993	69	16968
15.9 cm	1 Oct 1986	62	16934
15.8 cm	7 Oct 1986	65	16937
14.8 cm	16 Sept 1993	69	16968

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
Catfield Dyke	11 Feb 2015	11 Feb 2015	1
701	5 Oct 1998	5 Oct 1998	1
62	1 Oct 1986	3 Aug 1998	3
69	9 Oct 1986	24 Jul 1998	4
67	8 Oct 1986	20 Sept 1993	2
68	15 Sept 1993	15 Sept 1993	1
71	10 Oct 1986	26 Sept 1989	2
70	9 Oct 1986	4 Sept 1989	2
64	7 Oct 1986	30 Aug 1989	2
65	7 Oct 1986	24 Aug 1989	2
75	13 Oct 1986	13 Oct 1986	1
66	8 Oct 1986	8 Oct 1986	1

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

1986–2015

Survey records by year

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

986

087

088

689

090

091

092

393

094

095

096

097

398

099

000

001

002

003

004

005

006

007

008

009

010

011

012

013

014

115

Fish measured by surveyors

Measured length distribution

See how the 246 measured fish were spread across different length ranges.

Smallest: 4.2 cm
Lower quarter: 7.2 cm
Median: 8.6 cm
Upper quarter: 9.6 cm
Largest: 21 cm

0–99 mm

191

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hickling Broad

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

Roach Common bream Perch 3-spined stickleback European eel 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 →