European eel · Anguilla anguilla

European eel in the Back Brook

Largest measured european eel: 36.3 cm

The largest european eel measured in Environment Agency surveys of the Back Brook was 36.3 cm, recorded at Hillside (Sp) on 17 May 2011.

Across 38 measured european eel, the median measured length was 22 cm.

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

See european eel records across England →

Most recent observation2 June 2023Hillside (Sp) · 18 fish

Largest measured european eel: 36.3 cm
Median length: 22 cm
Fish measured: 38
Survey locations: 1

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
36.3 cm	17 May 2011	Hillside (Sp)	126368
34 cm	2 Jun 2023	Hillside (Sp)	162597
33 cm	2 Jun 2023	Hillside (Sp)	162597
33 cm	6 Jun 2016	Hillside (Sp)	148137
32.1 cm	17 May 2011	Hillside (Sp)	126368
31 cm	2 Jun 2023	Hillside (Sp)	162597
31 cm	6 Jun 2016	Hillside (Sp)	148137
30 cm	2 Jun 2023	Hillside (Sp)	162597
30 cm	6 Jun 2016	Hillside (Sp)	148137
28 cm	2 Jun 2023	Hillside (Sp)	162597

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
Hillside (Sp)	25 Sept 1998	2 Jun 2023	5

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

1998–2023

Survey records by year

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

198

099

000

001

002

103

004

005

006

007

008

009

010

111

012

013

014

015

116

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 38 measured fish were spread across different length ranges.

Smallest: 9.5 cm
Lower quarter: 16.3 cm
Median: 22 cm
Upper quarter: 27.8 cm
Largest: 36.3 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Back Brook

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

Brown / sea trout 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 →