European eel · Anguilla anguilla

European eel in the Kings Dyke

Largest measured european eel: 84.5 cm

The largest european eel measured in Environment Agency surveys of the Kings Dyke was 84.5 cm, recorded at Whittlesey on 3 July 2017.

Across 9 measured european eel, the median measured length was 43.6 cm.

Surveyors recorded weights for 6 european eel. The median was 9.8 oz (0.2765 kg) and the largest recorded weight was 2 lb 16 oz (1.36 kg).

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

See european eel records across England →

Most recent observation28 October 2025Horsey Toll · 1 fish

Largest measured european eel: 84.5 cm
Median length: 43.6 cm
Fish measured: 9
Survey locations: 4

Individual EA measurements

Largest measured european eel

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
84.5 cm	3 Jul 2017	Whittlesey	150815
58 cm	22 Jun 2006	Whittlesey	99687
56.2 cm	11 Jul 2011	Whittlesey	126889
50 cm	22 Jun 2006	Whittlesey	99687
43.6 cm	3 Jul 2017	Whittlesey	150815
43.4 cm	11 Jul 2011	Whittlesey	126889
43.2 cm	11 Jul 2011	Whittlesey	126889
34.2 cm	11 Jul 2011	Whittlesey	126889
25 cm	28 Oct 2025	Horsey Toll	179574

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where european eel were found

Each point marks a survey location with at least one european eel 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 european eel
Horsey Toll	11 May 1987	28 Oct 2025	4
Whittlesey	13 May 1987	3 Jul 2017	7
Fields End Bridge	15 May 1987	14 May 1999	4
Ashline Lock	20 Apr 1990	20 Apr 1990	1

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

1987–2025

Survey records by year

Each bar shows how many survey visits recorded european eel that year.

387

088

089

490

191

092

093

294

095

096

097

098

299

000

001

002

003

004

005

106

007

008

009

010

111

012

013

014

015

016

117

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 9 measured fish were spread across different length ranges.

Smallest: 25 cm
Lower quarter: 43.2 cm
Median: 43.6 cm
Upper quarter: 56.2 cm
Largest: 84.5 cm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

800–899 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 6 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 2.5 oz (0.07 kg)
Lower quarter: 8 oz (0.2262 kg)
Median: 9.8 oz (0.2765 kg)
Upper quarter: 1 lb 2.3 oz (0.5195 kg)
Heaviest: 2 lb 16 oz (1.36 kg)

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

More fish in this river

Explore the Kings Dyke

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

Perch Pike Roach Common bream Silver bream Bleak

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 →