European eel · Anguilla anguilla

European eel in the River Blyth (Headwaters)

Largest measured european eel: 49.8 cm

The largest european eel measured in Environment Agency surveys of the River Blyth (Headwaters) was 49.8 cm, recorded at Heveningham on 6 March 2006.

Across 6 measured european eel, the median measured length was 30.1 cm.

Surveyors recorded weights for 6 european eel. The median was 2 oz (0.0555 kg) and the largest recorded weight was 7.7 oz (0.218 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 Blyth (Headwaters).

See european eel records across England →

Most recent observation14 January 2013Heveningham · 1 fish

Largest measured european eel: 49.8 cm
Median length: 30.1 cm
Fish measured: 6
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
49.8 cm	6 Mar 2006	Heveningham	90056
35.4 cm	6 Mar 2006	Heveningham	90056
31.2 cm	14 Jan 2013	Heveningham	135582
29 cm	6 Mar 2006	Heveningham	90056
26.6 cm	6 Mar 2006	Heveningham	90056
20.4 cm	6 Mar 2006	Heveningham	90056

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
Heveningham	30 Apr 1998	14 Jan 2013	3
Huntingfield	30 Apr 1998	30 Apr 1998	1
Grove Farm	30 Apr 1998	30 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.

1998–2013

Survey records by year

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

398

099

000

001

002

003

004

005

106

007

008

009

010

011

012

113

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 20.4 cm
Lower quarter: 27.2 cm
Median: 30.1 cm
Upper quarter: 34.4 cm
Largest: 49.8 cm

200–299 mm

300–399 mm

400–499 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: 0.4 oz (0.012 kg)
Lower quarter: 1.1 oz (0.0308 kg)
Median: 2 oz (0.0555 kg)
Upper quarter: 3 oz (0.084 kg)
Heaviest: 7.7 oz (0.218 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 Blyth (Headwaters)

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

10-spined stickleback 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 →