European eel · Anguilla anguilla

European eel in the River Fynn

Largest measured european eel: 52.3 cm

The largest european eel measured in Environment Agency surveys of the River Fynn was 52.3 cm, recorded at Special Survey MB on 10 October 2008.

Across 37 measured european eel, the median measured length was 25.2 cm.

Surveyors recorded weights for 23 european eel. The median was 0.7 oz (0.02 kg) and the largest recorded weight was 7.8 oz (0.221 kg).

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

See european eel records across England →

Most recent observation7 March 2017Martlesham Bridge · 5 fish

Largest measured european eel: 52.3 cm
Median length: 25.2 cm
Fish measured: 37
Survey locations: 5

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
52.3 cm	10 Oct 2008	Special Survey MB	115812
49.6 cm	4 Feb 2011	Tuddenham	125903
49.5 cm	4 Feb 2011	Martlesham Bridge	125901
48.7 cm	4 Feb 2011	Martlesham Bridge	125901
40.9 cm	10 Oct 2008	Special Survey MB	115812
39.6 cm	7 Mar 2017	Martlesham Bridge	152307
38.1 cm	7 Mar 2017	Martlesham Bridge	152307
35.6 cm	10 Oct 2008	Special Survey MB	115812
34.5 cm	4 Feb 2011	Martlesham Bridge	125901
32.8 cm	10 Oct 2008	Special Survey MB	115812

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
Martlesham Bridge	7 Apr 1998	7 Mar 2017	4
Tuddenham	6 Apr 1998	4 Feb 2011	2
Special Survey MB	10 Oct 2008	10 Oct 2008	1
Little Bealings Bridge	6 Apr 1998	9 Feb 2006	2
Witnesham Hall	9 Apr 1998	9 Apr 1998	1

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

1998–2017

Survey records by year

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

498

099

000

001

002

003

004

005

206

007

108

009

010

211

012

013

014

015

016

117

Fish measured by surveyors

Measured length distribution

See how the 37 measured fish were spread across different length ranges.

Smallest: 11.1 cm
Lower quarter: 17.7 cm
Median: 25.2 cm
Upper quarter: 32.8 cm
Largest: 52.3 cm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 23 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.0029 kg)
Lower quarter: 0.3 oz (0.0071 kg)
Median: 0.7 oz (0.02 kg)
Upper quarter: 2.1 oz (0.0595 kg)
Heaviest: 7.8 oz (0.221 kg)

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

More fish in this river

Explore the River Fynn

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

3-spined stickleback Stone loach 10-spined stickleback Brown / sea trout Flounder

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 →