European eel · Anguilla anguilla

European eel in the River Gadder

Largest measured european eel: 35 cm

The largest european eel measured in Environment Agency surveys of the River Gadder was 35 cm, recorded at DS Gooderstone on 6 October 2005.

Across 2 measured european eel, the median measured length was 33.5 cm.

Surveyors recorded one individual weight: 5.3 oz (0.15 kg).

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

See european eel records across England →

Most recent observation2 May 2024DS Gooderstone · 1 fish

Largest measured european eel: 35 cm
Median length: 33.5 cm
Fish measured: 2
Survey locations: 3

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
35 cm	6 Oct 2005	DS Gooderstone	87513
32.1 cm	2 May 2024	DS Gooderstone	165463

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
DS Gooderstone	8 Feb 1990	2 May 2024	4
Cockley Cley	8 Feb 1990	9 Feb 2000	2
Ferry Farm	9 Feb 1990	14 Jan 1993	2

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

1990–2024

Survey records by year

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

390

091

092

293

094

095

096

097

098

099

100

001

002

003

004

105

006

007

008

009

010

011

012

013

014

015

016

017

018

019

020

021

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 2 measured fish were spread across different length ranges.

Smallest: 32.1 cm
Lower quarter: 32.8 cm
Median: 33.6 cm
Upper quarter: 34.3 cm
Largest: 35 cm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight: 5.3 oz (0.15 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Gadder

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

Bullhead Brown / sea trout Pike

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 →