European eel · Anguilla anguilla

European eel in the Madresfield Brook

Largest measured european eel: 52 cm

The largest european eel measured in Environment Agency surveys of the Madresfield Brook was 52 cm, recorded at Old Hills on 13 July 1998.

Across 378 measured european eel, the median measured length was 19.9 cm.

Surveyors recorded weights for 262 european eel. The median was 0.4 oz (0.0105 kg) and the largest recorded weight was 8.8 oz (0.249 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Madresfield Brook.

See european eel records across England →

Most recent observation16 June 2026Old Hills · 3 fish

Largest measured european eel: 52 cm
Median length: 19.9 cm
Fish measured: 378
Survey locations: 2

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.

Length	Survey date	Survey location	Survey ID
52 cm	13 Jul 1998	Old Hills	80853
50.2 cm	19 Jul 2002	Old Hills	73422
45 cm	8 Jun 2021	Old Hills	159876
44.9 cm	19 Jul 2002	Un-named (Madresfield Brook)	73420
42.9 cm	19 Jul 2002	Old Hills	73422
40.6 cm	19 Jul 2002	Old Hills	73422
39.6 cm	19 Jul 2002	Un-named (Madresfield Brook)	73420
37 cm	19 Jul 2002	Old Hills	73422
36.7 cm	19 Jul 2002	Un-named (Madresfield Brook)	73420
36.2 cm	16 Jul 2014	Old Hills	141724

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 surveyed	First recorded	Last recorded	Visits finding european eel
Old Hills	13 Jul 1998	16 Jun 2026	12
Un-named (Madresfield Brook)	19 Jul 2002	19 Jul 2002	1

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

1998–2026

Survey records by year

Each bar shows how many survey visits recorded european eel that year.

198

099

000

001

202

003

004

005

006

007

108

009

110

011

112

013

114

015

116

017

118

019

020

121

122

023

124

025

126

Fish measured by surveyors

Measured length distribution

See how the 378 measured fish were spread across different length ranges.

Smallest: 7.9 cm
Lower quarter: 13.8 cm
Median: 19.9 cm
Upper quarter: 27.5 cm
Largest: 52 cm

0–99 mm

100–199 mm

172

200–299 mm

124

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 262 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.004 kg)
Median: 0.4 oz (0.0105 kg)
Upper quarter: 0.9 oz (0.0258 kg)
Heaviest: 8.8 oz (0.249 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Madresfield Brook

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

3-spined stickleback Stone loach Bullhead

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 →