European eel · Anguilla anguilla

European eel in the Sea Trout Survey, Doniford Stream

Largest measured european eel: 53.5 cm

The largest european eel measured in Environment Agency surveys of the Sea Trout Survey, Doniford Stream was 53.5 cm, recorded at Adjacent to Sewage Treatment Works on 18 September 2019.

Across 25 measured european eel, the median measured length was 32 cm.

Surveyors recorded weights for 18 european eel. The median was 2.4 oz (0.0685 kg) and the largest recorded weight was 7.2 oz (0.203 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Sea Trout Survey, Doniford Stream.

See european eel records across England →

Most recent observation18 September 2019Adjacent to Sewage Treatment Works · 6 fish

Largest measured european eel: 53.5 cm
Median length: 32 cm
Fish measured: 25
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
53.5 cm	18 Sept 2019	Adjacent to Sewage Treatment Works	155395
49.5 cm	13 Oct 2006	Swill Bridge	101838
44 cm	13 Oct 2006	High Bridge, Williton	101836
41 cm	18 Sept 2019	Adjacent to Sewage Treatment Works	155395
38.5 cm	13 Oct 2006	Swill Bridge	101838
36 cm	13 Oct 2006	Adjacent to Sewage Treatment Works	101840
34 cm	13 Oct 2006	Swill Bridge	101838
34 cm	13 Oct 2006	High Bridge, Williton	101836
33.5 cm	13 Oct 2006	Swill Bridge	101838
33.5 cm	13 Oct 2006	High Bridge, Williton	101836

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
Adjacent to Sewage Treatment Works	13 Oct 2006	18 Sept 2019	3
Swill Bridge	18 Oct 2005	13 Oct 2006	2
Spill End	18 Oct 2005	13 Oct 2006	2
High Bridge, Williton	13 Oct 2006	13 Oct 2006	1

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

2005–2019

Survey records by year

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

205

406

007

008

009

010

111

012

013

014

015

016

017

018

119

Fish measured by surveyors

Measured length distribution

See how the 25 measured fish were spread across different length ranges.

Smallest: 7.5 cm
Lower quarter: 25 cm
Median: 32 cm
Upper quarter: 34 cm
Largest: 53.5 cm

0–99 mm

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 18 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.003 kg)
Lower quarter: 1.2 oz (0.0352 kg)
Median: 2.4 oz (0.0685 kg)
Upper quarter: 3.1 oz (0.089 kg)
Heaviest: 7.2 oz (0.203 kg)

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

More fish in this river

Explore the Sea Trout Survey, Doniford Stream

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

Brown / sea trout Bullhead Minnow

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 →