European eel · Anguilla anguilla

European eel in the Bollihope Burn

Largest measured european eel: 57 cm

The largest european eel measured in Environment Agency surveys of the Bollihope Burn was 57 cm, recorded at Bollihope Burn Quarry on 27 August 2013.

Across 6 measured european eel, the median measured length was 41.2 cm.

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

See european eel records across England →

Most recent observation28 July 2025Bollihope Burn Quarry · 4 fish

Largest measured european eel: 57 cm
Median length: 41.2 cm
Fish measured: 6
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
57 cm	27 Aug 2013	Bollihope Burn Quarry	138200
50 cm	28 Jul 2025	Bollihope Burn Quarry	177754
42.5 cm	27 Aug 2013	Bollihope Burn at Bollihope Common	138201
40 cm	28 Jul 2025	Bollihope Burn Quarry	177754
30 cm	28 Jul 2025	Bollihope Burn Quarry	177754
23 cm	28 Jul 2025	Bollihope Burn Quarry	177754

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
Bollihope Burn Quarry	13 Sept 2001	28 Jul 2025	5
Bollihope Burn at Bollihope Common	6 Oct 2003	27 Aug 2013	3

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

2001–2025

Survey records by year

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

101

102

103

004

005

006

207

008

009

010

011

012

213

014

015

016

017

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 23 cm
Lower quarter: 32.5 cm
Median: 41.3 cm
Upper quarter: 48.1 cm
Largest: 57 cm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bollihope Burn

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

Brown / sea trout Atlantic salmon

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 →