RiverFish

European eel · Anguilla anguilla

European eel in the River Darent

Largest measured european eel: 116 cm

The largest european eel measured in Environment Agency surveys of the River Darent was 116 cm, recorded at Acacia Hall on 9 July 2007.

Across 635 measured european eel, the median measured length was 35.5 cm.

Surveyors recorded one individual weight: 1 lb 12.5 oz (0.807 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 Darent.

See european eel records across England →

Most recent observation22 July 2026Twitton Brook · 5 fish
Largest measured european eel
116 cm
Median length
35.5 cm
Fish measured
635
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
116 cm9 Jul 2007Acacia Hall106400
91 cm23 May 2013Hawley Hall136105
87 cm6 Jun 2024Twitton Brook165054
86.2 cm22 Jul 2026Twitton Brook182293
85 cm13 May 2015Twitton Brook144691
82 cm1 Jul 2026Hawley Hall181971
80.5 cm15 Apr 2015Horton Kirby144603
80 cm16 May 2013Preston Farm136094
80 cm22 Aug 2005Twitton Brook87541
79 cm29 May 2024Hawley Hall165050

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
Twitton Brook26 Aug 200322 Jul 20269
Hawley Hall30 Jul 20091 Jul 20269
Preston Farm3 Jul 200311 Jun 202614
Lullingstone13 Sept 200710 Jun 202611
Horton Kirby1 Jul 200314 May 202614
Dartford Park5 Aug 20024 Jun 20247
Sevenoaks Wildfowl Reserve5 Aug 200922 May 20246
Acacia Hall1 Sept 200328 Aug 20097

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

2002–2026

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 635 measured fish were spread across different length ranges.

Smallest
7.5 cm
Lower quarter
26.5 cm
Median
35.5 cm
Upper quarter
50.6 cm
Largest
116 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight
1 lb 12.5 oz (0.807 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 Darent

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

Gudgeon Bullhead Roach Perch Brown / sea trout Stone loach

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 →