RiverFish

European eel · Anguilla anguilla

European eel in the Naddle Beck

Largest measured european eel: 32 cm

The largest european eel measured in Environment Agency surveys of the Naddle Beck was 32 cm, recorded at 1556.00 Shoulthwaite, Naddle Beck on 20 July 2017.

Across 29 measured european eel, the median measured length was 19 cm.

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

See european eel records across England →

Most recent observation7 August 20251556.00 Shoulthwaite, Naddle Beck · 2 fish
Largest measured european eel
32 cm
Median length
19 cm
Fish measured
29
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.

LengthSurvey dateSurvey locationSurvey ID
32 cm20 Jul 20171556.00 Shoulthwaite, Naddle Beck151058
31 cm20 Jul 20171556.00 Shoulthwaite, Naddle Beck151058
31 cm19 Aug 20111557.80 DS Footbridge, Naddle Beck129571
30 cm15 Jul 20021556.00 Shoulthwaite, Naddle Beck67101
25 cm20 Jul 20171556.00 Shoulthwaite, Naddle Beck151058
25 cm15 Jul 20021558.00 Near road bridge NY300239, Naddle Beck67103
25 cm15 Jul 20021556.00 Shoulthwaite, Naddle Beck67101
24 cm31 Aug 20101556.00 Shoulthwaite, Naddle Beck125050
23 cm20 Jul 20171556.00 Shoulthwaite, Naddle Beck151058
23 cm19 Aug 20111557.80 DS Footbridge, Naddle Beck129571

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 surveyedFirst recordedLast recordedVisits finding european eel
1556.00 Shoulthwaite, Naddle Beck15 Jul 20027 Aug 20258
1557.00 Dalebottom, Naddle Beck19 Aug 201127 Jun 20233
1557.80 DS Footbridge, Naddle Beck19 Aug 201119 Aug 20111
1558.00 Near road bridge NY300239, Naddle Beck15 Jul 200211 Jul 20072

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

2002–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 29 measured fish were spread across different length ranges.

Smallest
11 cm
Lower quarter
15 cm
Median
19 cm
Upper quarter
24 cm
Largest
32 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Naddle Beck

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

Brown / sea trout Atlantic salmon

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 →