RiverFish

European eel · Anguilla anguilla

European eel in the River Main Molland Yeo

Largest measured european eel: 56 cm

The largest european eel measured in Environment Agency surveys of the River Main Molland Yeo was 56 cm, recorded at Yeo Mill (Sp) on 13 August 2012.

Across 22 measured european eel, the median measured length was 30.1 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 Molland Yeo.

See european eel records across England →

Most recent observation25 July 2025Westbridge Stables (Sp) · 3 fish
Largest measured european eel
56 cm
Median length
30.1 cm
Fish measured
22
Survey locations
8

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
56 cm13 Aug 2012Yeo Mill (Sp)132777
49 cm22 Aug 2018Westbridge Stables (Sp)153469
41 cm13 Aug 2012Bottreaux Mill (Sp)132778
36.5 cm25 Jul 2014Mornacott (Te)142080
35 cm7 Aug 2023Mornacott (Te)163837
35 cm22 Aug 2018Westbridge Stables (Sp)153469
35 cm12 Jul 2018Mornacott (Te)152907
33.5 cm22 Aug 2018Westbridge Stables (Sp)153469
33 cm13 Aug 2012Yeo Mill (Sp)132777
31.5 cm25 Jul 2014Mornacott (Te)142080

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
Westbridge Stables (Sp)20 Aug 199625 Jul 20253
Mornacott (Te)20 Aug 199617 Jul 202514
Westbridge Stables (5 min)25 Sept 202325 Sept 20231
Yeo Mill (Sp)20 Aug 199613 Aug 20123
Bottreaux Mill (Sp)23 Aug 199613 Aug 20123
Bish Mill (5 min)6 Aug 19967 Sept 20062
Touts Bridge (Sp)23 Aug 199623 Aug 19992
Grilstone (5 min)20 Aug 199620 Aug 19961

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

1996–2025

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 22 measured fish were spread across different length ranges.

Smallest
10.5 cm
Lower quarter
13.5 cm
Median
30.2 cm
Upper quarter
35 cm
Largest
56 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Molland Yeo

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

Brown / sea trout Bullhead Atlantic salmon Stone loach 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 →