European eel · Anguilla anguilla

European eel in the Polmorla Stream

Largest measured european eel: 45.5 cm

The largest european eel measured in Environment Agency surveys of the Polmorla Stream was 45.5 cm, recorded at Treneague on 6 August 1997.

Across 168 measured european eel, the median measured length was 15.8 cm.

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

See european eel records across England →

Most recent observation16 June 2023Treneague · 7 fish

Largest measured european eel: 45.5 cm
Median length: 15.8 cm
Fish measured: 168
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
45.5 cm	6 Aug 1997	Treneague	103679
33.5 cm	6 Aug 1997	Treneague	103679
33.1 cm	6 Aug 1997	Polmorla	103678
33 cm	14 Jun 2011	Treneague	126599
32.5 cm	6 Aug 1997	Treneague	103679
32.1 cm	7 Jul 2000	Treneague	103560
32 cm	16 Jun 2023	Treneague	162540
31.1 cm	6 Aug 1997	Treneague	103679
30.5 cm	6 Aug 1997	Treneague	103679
30.5 cm	6 Aug 1997	Treneague	103679

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
Treneague	2 Jul 1985	16 Jun 2023	9
Polmorla	2 Jul 1985	3 Jul 2000	5

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

1985–2023

Survey records by year

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

285

086

087

088

089

090

291

092

093

294

095

096

297

098

099

200

001

002

003

004

005

106

007

008

009

010

111

012

013

014

015

016

117

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 168 measured fish were spread across different length ranges.

Smallest: 7.5 cm
Lower quarter: 11.5 cm
Median: 15.9 cm
Upper quarter: 21.1 cm
Largest: 45.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Polmorla Stream

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 →