RiverFish

European eel · Anguilla anguilla

European eel in the River Alde (Main Reaches)

Largest measured european eel: 47.5 cm

The largest european eel measured in Environment Agency surveys of the River Alde (Main Reaches) was 47.5 cm, recorded at Upstream Langham Bridge on 25 March 2003.

Across 39 measured european eel, the median measured length was 33.5 cm.

Surveyors recorded weights for 21 european eel. The median was 2.3 oz (0.066 kg) and the largest recorded weight was 6.6 oz (0.186 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 Alde (Main Reaches).

See european eel records across England →

Most recent observation9 May 2024Upstream Langham Bridge · 9 fish
Largest measured european eel
47.5 cm
Median length
33.5 cm
Fish measured
39
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
47.5 cm25 Mar 2003Upstream Langham Bridge79271
44 cm25 Mar 2003Upstream Langham Bridge79271
43.5 cm4 Jul 2016Upstream Langham Bridge148819
43.5 cm25 Mar 2003Upstream Langham Bridge79271
42 cm25 Mar 2003Upstream Langham Bridge79271
39 cm25 Mar 2003Upstream Langham Bridge79271
37.5 cm26 Mar 2003Upstream Farnham Bridge79273
37 cm25 Mar 2003Upstream Langham Bridge79271
36.8 cm26 Mar 2003Upstream Farnham Bridge79273
36 cm14 Jul 2010Upstream Langham Bridge122774

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
Upstream Langham Bridge6 Nov 19879 May 20248
Upstream Farnham Bridge3 Nov 19875 Jul 20166
Downstream Benhall Place2 Nov 198727 Jun 19954
Upstream Blaxhall Railway Bridge5 Nov 198720 Jun 19954
Downstream Langham Bridge12 Jun 199512 Jun 19951

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

1987–2024

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 39 measured fish were spread across different length ranges.

Smallest
20.5 cm
Lower quarter
27.8 cm
Median
33.5 cm
Upper quarter
35.7 cm
Largest
47.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 21 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest
1.1 oz (0.032 kg)
Lower quarter
2.2 oz (0.062 kg)
Median
2.3 oz (0.066 kg)
Upper quarter
3.1 oz (0.088 kg)
Heaviest
6.6 oz (0.186 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 Alde (Main Reaches)

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

Dace Roach Stone loach 3-spined stickleback Flounder Chub

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 →