European eel · Anguilla anguilla

European eel in the Fleet

Largest measured european eel: 64 cm

The largest european eel measured in Environment Agency surveys of the Fleet was 64 cm, recorded at Girton on 7 June 2013.

Across 308 measured european eel, the median measured length was 29.2 cm.

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

See european eel records across England →

Most recent observation20 June 2023Girton · 2 fish

Largest measured european eel: 64 cm
Median length: 29.2 cm
Fish measured: 308
Survey locations: 3

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
64 cm	7 Jun 2013	Girton	139881
63 cm	9 Jun 2011	US Weir	126432
62 cm	25 Jun 2015	Girton	145280
61.5 cm	17 Jun 2011	Girton	126604
60 cm	7 Jun 2013	Girton	139881
60 cm	7 Jun 2013	Girton	139881
60 cm	17 Jun 2011	Girton	126604
60 cm	9 Jun 2011	US Weir	126432
56.5 cm	17 Jun 2011	Girton	126604
55 cm	22 May 2019	Girton	154509

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
Girton	17 Jun 2011	20 Jun 2023	6
Besthorpe Nature Reserve	7 Jun 2018	7 Jun 2018	1
US Weir	9 Jun 2011	9 Jun 2011	1

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

2011–2023

Survey records by year

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

211

012

113

014

115

016

117

118

119

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 308 measured fish were spread across different length ranges.

Smallest: 5 cm
Lower quarter: 18 cm
Median: 29.3 cm
Upper quarter: 38.6 cm
Largest: 64 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

600–699 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Fleet

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

Roach Spined loach Perch 3-spined stickleback Bullhead Gudgeon

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 →