European eel · Anguilla anguilla

European eel in the River Main Warleggan

Largest measured european eel: 72 cm

The largest european eel measured in Environment Agency surveys of the River Main Warleggan was 72 cm, recorded at Carne Wood on 27 July 2010.

Across 779 measured european eel, the median measured length was 19.8 cm.

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

See european eel records across England →

Most recent observation2 September 2025Carne Wood · 1 fish

Largest measured european eel: 72 cm
Median length: 19.8 cm
Fish measured: 779
Survey locations: 7

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
72 cm	27 Jul 2010	Carne Wood	123131
67 cm	18 Aug 2016	Carne Wood	149008
54 cm	20 Sept 2002	Temple	72792
52 cm	5 Sept 2019	Carne Wood	155691
50.5 cm	18 Aug 2006	Temple	100718
50.5 cm	19 Sept 2002	u/s Maidenwell	72804
48.8 cm	2 Sept 1999	Warleggan Gauging Station	134641
48.3 cm	12 Aug 1996	u/s Maidenwell	104294
47.5 cm	18 Aug 2006	Temple	100718
47 cm	8 Sept 2011	Panters Bridge	127918

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
Carne Wood	29 Jul 1994	2 Sept 2025	20
West Wood	10 Aug 1977	23 Jul 2024	19
Panters Bridge	9 Aug 1977	8 Sept 2011	18
Temple	4 Aug 1994	18 Aug 2006	10
Wooda Bridge	2 Aug 1994	28 Sept 2004	7
u/s Maidenwell	27 Jul 1994	22 Sept 2004	9
Warleggan Gauging Station	4 Aug 1994	7 Sept 2004	8

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

1977–2025

Survey records by year

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

377

878

579

080

081

082

083

084

085

086

087

088

089

090

091

092

093

794

095

796

697

798

699

700

001

702

503

604

305

206

007

008

009

110

111

212

113

014

015

116

017

018

119

020

121

122

123

124

125

Fish measured by surveyors

Measured length distribution

See how the 779 measured fish were spread across different length ranges.

Smallest: 2.4 cm
Lower quarter: 13.7 cm
Median: 19.8 cm
Upper quarter: 29.4 cm
Largest: 72 cm

0–99 mm

100–199 mm

320

200–299 mm

199

300–399 mm

169

400–499 mm

500–599 mm

600–699 mm

700–799 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Warleggan

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

Brown / sea trout Atlantic salmon 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 →