RiverFish

European eel · Anguilla anguilla

European eel in the River Morden Hall

Largest measured european eel: 67.6 cm

The largest european eel measured in Environment Agency surveys of the River Morden Hall was 67.6 cm, recorded at Morden Hall Enhancement site on 27 June 2008.

Across 138 measured european eel, the median measured length was 44 cm.

Surveyors recorded weights for 13 european eel. The median was 8.6 oz (0.244 kg) and the largest recorded weight was 1 lb 5.4 oz (0.608 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 Morden Hall.

See european eel records across England →

Most recent observation1 October 2025Morden Hall Park · 19 fish
Largest measured european eel
67.6 cm
Median length
44 cm
Fish measured
138
Survey locations
6

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
67.6 cm27 Jun 2008Morden Hall Enhancement site112207
67.5 cm5 Jun 2013Morden Hall Park136246
64 cm16 Apr 2002Morden Hall Park73753
63 cm27 Jun 2008Morden Hall Downstream stretch112210
62 cm19 Jan 2010Snuff Mill Distributary Adj Morden Hall Road gate121265
62 cm27 Jun 2008Morden Hall Downstream stretch112210
61 cm1 Oct 2025Morden Hall Park180361
61 cm16 Apr 2002Morden Hall Park73753
60 cm16 Apr 2002Morden Hall Park73753
59.5 cm1 Oct 2025Morden Hall Park180361

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
Morden Hall Park29 Mar 19941 Oct 202510
Snuff Mill Distributary Adj Morden Hall Road gate19 Jan 201019 Jan 20101
Morden Hall Enhancement site27 Jun 200827 Jun 20081
Morden Hall Downstream stretch27 Jun 200827 Jun 20081
Phipps Bridge to Morden Hall Deer Park26 Jul 198826 Jul 19881
Morden Hall Deer Park26 Jul 198826 Jul 19881

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

1988–2025

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 138 measured fish were spread across different length ranges.

Smallest
4.3 cm
Lower quarter
33.6 cm
Median
44 cm
Upper quarter
50.7 cm
Largest
67.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 13 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest
1 oz (0.028 kg)
Lower quarter
5.9 oz (0.168 kg)
Median
8.6 oz (0.244 kg)
Upper quarter
13.3 oz (0.377 kg)
Heaviest
1 lb 5.4 oz (0.608 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 Morden Hall

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

Gudgeon Chub Roach Dace Stone loach 3-spined stickleback

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 →