RiverFish

European eel · Anguilla anguilla

European eel in the River Main Allen

Largest measured european eel: 43 cm

The largest european eel measured in Environment Agency surveys of the River Main Allen was 43 cm, recorded at Scawswater Mill on 12 October 2021.

Across 56 measured european eel, the median measured length was 24.5 cm.

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

See european eel records across England →

Most recent observation15 August 2023Scawswater Mill · 3 fish
Largest measured european eel
43 cm
Median length
24.5 cm
Fish measured
56
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.

LengthSurvey dateSurvey locationSurvey ID
43 cm12 Oct 2021Scawswater Mill160688
39.5 cm17 Aug 2022Daubuz's Moor161607
38 cm17 Aug 2022Scawswater Mill161608
38 cm31 May 2011Daubuz's Moor126542
37 cm15 Aug 2023Scawswater Mill163114
35 cm17 Aug 2022Scawswater Mill161608
35 cm12 Oct 2021Scawswater Mill160688
35 cm31 May 2011Daubuz's Moor126542
34.5 cm6 Jun 2005Daubuz's Moor86768
34 cm12 Oct 2021Scawswater Mill160688

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
Scawswater Mill31 Jul 198615 Aug 20234
Daubuz's Moor18 Jul 198617 Aug 20224
Lanner Mill15 Jul 198620 May 20222
Ladys Wood16 Jul 198616 Jul 19861
Trenerry Wood15 Jul 198615 Jul 19861

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

1986–2023

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 56 measured fish were spread across different length ranges.

Smallest
9.5 cm
Lower quarter
17 cm
Median
24.5 cm
Upper quarter
30.3 cm
Largest
43 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Allen

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

Brown / sea trout Bullhead Brook lamprey

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 →