RiverFish

European eel · Anguilla anguilla

European eel in the River Alt

Largest measured european eel: 51 cm

The largest european eel measured in Environment Agency surveys of the River Alt was 51 cm, recorded at Homer Green on 19 October 2015.

Across 35 measured european eel, the median measured length was 29 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 Alt.

See european eel records across England →

Most recent observation1 May 2026Alt Weir Downstream · 8 fish
Largest measured european eel
51 cm
Median length
29 cm
Fish measured
35
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
51 cm19 Oct 2015Homer Green147197
46.5 cm8 Mar 2013Bull Bridge135707
45 cm8 Mar 2013Bull Bridge135707
42 cm1 May 2026Alt Weir Downstream181192
42 cm18 Oct 2007Bull Bridge108830
41 cm17 Jul 2001Bull Bridge90482
40 cm8 Mar 2013Bull Bridge135707
40 cm18 Oct 2007Bull Bridge108830
39 cm18 Oct 2007Bull Bridge108830
39 cm31 Aug 2005Bull Bridge87759

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
Alt Weir Downstream1 May 20261 May 20261
Homer Green19 Oct 201519 Oct 20151
Bull Bridge17 Jul 20018 Mar 20134
Alt Bridge4 Sept 199630 Aug 20053

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

1996–2026

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 35 measured fish were spread across different length ranges.

Smallest
12 cm
Lower quarter
20.5 cm
Median
29 cm
Upper quarter
39 cm
Largest
51 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Alt

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

Gudgeon Flounder Chub Roach Pike

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 →