European eel · Anguilla anguilla

European eel in the Bala Brook

Largest measured european eel: 50 cm

The largest european eel measured in Environment Agency surveys of the Bala Brook was 50 cm, recorded at Zeal Bridge (Sp) on 28 July 2022.

Across 3 measured european eel, the median measured length was 37.5 cm.

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

See european eel records across England →

Most recent observation28 July 2022Zeal Bridge (Sp) · 1 fish

Largest measured european eel: 50 cm
Median length: 37.5 cm
Fish measured: 3
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
50 cm	28 Jul 2022	Zeal Bridge (Sp)	161225
37.5 cm	10 Jul 2013	Zeal Bridge (Sp)	137088
18.1 cm	14 Sept 2007	Zeal Bridge (Sp)	106697

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
Zeal Bridge (Sp)	11 Aug 1997	28 Jul 2022	5

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

1997–2022

Survey records by year

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

197

098

099

100

001

002

003

004

005

006

107

008

009

010

011

012

113

014

015

016

017

018

019

020

021

122

Fish measured by surveyors

Measured length distribution

See how the 3 measured fish were spread across different length ranges.

Smallest: 18.1 cm
Lower quarter: 27.8 cm
Median: 37.5 cm
Upper quarter: 43.8 cm
Largest: 50 cm

100–199 mm

300–399 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bala Brook

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

Brown / sea trout

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 →