RiverFish

European eel · Anguilla anguilla

European eel in the River Meden

Largest measured european eel: 74 cm

The largest european eel measured in Environment Agency surveys of the River Meden was 74 cm, recorded at Budby on 5 July 2005.

Across 195 measured european eel, the median measured length was 52 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 Meden.

See european eel records across England →

Most recent observation24 September 2025Bothamsall · 1 fish
Largest measured european eel
74 cm
Median length
52 cm
Fish measured
195
Survey locations
8

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.

LengthSurvey dateSurvey locationSurvey ID
74 cm5 Jul 2005Budby84988
70 cm3 Jun 2010Perlethorpe Gauging Weir121802
70 cm26 May 2010Bothamsall121718
68.2 cm27 May 2009Thoresby119478
65 cm19 May 2011Perlethorpe Gauging Weir126320
65 cm19 May 2011Perlethorpe Gauging Weir126320
65 cm3 Jun 2010Meden Vale121795
65 cm26 May 2010Bothamsall121718
64 cm23 May 2013Perlethorpe Gauging Weir136434
64 cm26 May 2010Bothamsall121718

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 surveyedFirst recordedLast recordedVisits finding european eel
Bothamsall3 Oct 199524 Sept 202513
Perlethorpe Gauging Weir3 Jun 201023 May 20133
US Pre-barrage (DS Bothamsall)26 Jun 201226 Jun 20121
DS Bothamsall (DS Pre-barrage)26 Jun 201226 Jun 20121
Meden Vale10 Oct 19953 Jun 201010
Thoresby28 Nov 199127 May 20095
Budby22 Jan 199220 Jun 20067
Church Warsop5 Feb 19925 Feb 19921

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

1991–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 195 measured fish were spread across different length ranges.

Smallest
24 cm
Lower quarter
43.3 cm
Median
52 cm
Upper quarter
58 cm
Largest
74 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Meden

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

Bullhead Chub Roach Brown / sea trout 3-spined stickleback Gudgeon

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 →