RiverFish

Flounder · Platichthys flesus

Flounder in the Blakeney Brook (Blackpool Brook)

Largest measured flounder: 19.8 cm

The largest flounder measured in Environment Agency surveys of the Blakeney Brook (Blackpool Brook) was 19.8 cm, recorded at Nether Hall Bridge on 27 August 2014.

Across 199 measured flounder, the median measured length was 5.6 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Blakeney Brook (Blackpool Brook).

See flounder records across England →

Most recent observation28 July 2021Nether Hall Bridge · 1 fish
Largest measured flounder
19.8 cm
Median length
5.6 cm
Fish measured
199
Survey locations
3

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
19.8 cm27 Aug 2014Nether Hall Bridge142884
17.9 cm28 Jul 2021Nether Hall Bridge160110
15.9 cm5 Oct 1992Blakeney24869
15.2 cm26 Sept 2002Hall Farm d/s Blakeney65580
15.1 cm30 Jul 1991Hall Farm d/s Blakeney24526
15 cm22 Aug 2007Nether Hall Bridge106559
14.4 cm14 Aug 2018Nether Hall Bridge153044
14.3 cm5 Oct 1992Blakeney24869
14 cm26 Sept 2002Hall Farm d/s Blakeney65580
14 cm24 Jul 1996Hall Farm d/s Blakeney25069

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
Nether Hall Bridge22 Aug 200728 Jul 20215
Hall Farm d/s Blakeney30 Jul 19913 Sept 20044
Blakeney5 Oct 19925 Oct 19921

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

1991–2021

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 199 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
4.6 cm
Median
5.6 cm
Upper quarter
6.8 cm
Largest
19.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Blakeney Brook (Blackpool Brook)

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

Brown / sea trout Bullhead Atlantic salmon European eel Roach 3-spined stickleback

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 →