RiverFish

European eel · Anguilla anguilla

European eel in the Willow Brook

Largest measured european eel: 83 cm

The largest european eel measured in Environment Agency surveys of the Willow Brook was 83 cm, recorded at Woodnewton on 26 October 2011.

Across 25 measured european eel, the median measured length was 62 cm.

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

See european eel records across England →

Most recent observation25 October 2018Walcot Lodge DS Site · 2 fish
Largest measured european eel
83 cm
Median length
62 cm
Fish measured
25
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
83 cm26 Oct 2011Woodnewton128781
80 cm26 Oct 2011Woodnewton128781
75 cm29 May 2015Woodnewton145172
73 cm18 Jun 2013Woodnewton137450
72 cm18 Jun 2013Woodnewton137450
72 cm26 Oct 2011Woodnewton128781
71 cm27 Oct 2009Woodnewton119992
65 cm29 May 2012Bulwick131346
64.5 cm18 Jun 2013Woodnewton137450
64 cm26 May 2018Walcot Lodge US Site153800

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
Walcot Lodge DS Site27 May 201825 Oct 20182
Walcot Lodge US Site26 May 201826 May 20181
Woodnewton15 Feb 198929 May 20159
Bulwick21 Feb 198929 May 20124
Apethorpe14 Feb 198911 Aug 19984
King's Cliffe21 Feb 198910 Aug 19983
Downstream Deene Lake22 Feb 198912 May 19952
Alder Farm26 Feb 199226 Feb 19921

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

1989–2018

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 25 measured fish were spread across different length ranges.

Smallest
35 cm
Lower quarter
50 cm
Median
62 cm
Upper quarter
71 cm
Largest
83 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Willow Brook

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

Chub Roach Gudgeon Perch Bullhead Dace

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 →