RiverFish

European eel · Anguilla anguilla

European eel in the River Derwent (Yorkshire)

Largest measured european eel: 70 cm

The largest european eel measured in Environment Agency surveys of the River Derwent (Yorkshire) was 70 cm, recorded at Downstream Weir Head DERBT3 on 20 September 2018.

Across 34 measured european eel, the median measured length was 30 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 Derwent (Yorkshire).

See european eel records across England →

Most recent observation24 August 2021Downstream Forge Valley gauging weir. DERBT5. · 1 fish
Largest measured european eel
70 cm
Median length
30 cm
Fish measured
34
Survey locations
17

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
70 cm20 Sept 2018Downstream Weir Head DERBT3153400
58 cm10 Aug 2010Kirkham Abbey DERCORS7124882
55 cm1 Sept 2016Downstream Forge Valley gauging weir. DERBT5.149130
50.3 cm17 Sept 2012Darrells Low Fm133800
50 cm16 Jul 2018Malton DERCORS5152889
50 cm16 Jul 2018Malton DERCORS5152889
49.5 cm24 Jul 2012Kirkham Abbey DERCORS7132633
45 cm27 Jul 2012Stamford Bridge DERCORS10132630
41.4 cm24 Jul 2012Kirkham Abbey DERCORS7132633
40 cm24 Aug 2021Downstream Forge Valley gauging weir. DERBT5.160140

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
Downstream Forge Valley gauging weir. DERBT5.24 Sept 200124 Aug 20216
Downstream West Ayton DERBT630 Aug 200014 Aug 20194
Downstream Weir Head DERBT324 Sept 200120 Sept 20185
Stamford Bridge DERCORS1024 Apr 199516 Jul 201812
Malton DERCORS55 Sept 200116 Jul 20189
Sutton Upon Derwent DERCORS1826 Sept 199721 Jul 201510
Darrells Low Fm21 Jun 200617 Sept 20122
Buttercrambe DERCORS914 Sept 200126 Jul 20128
Kirkham Abbey DERCORS77 Sept 200124 Jul 201210
Howsham DERCORS812 Sept 200124 Jul 20127
Wheldrake Ings DERCORS1917 Sept 200119 Oct 20088
Upstream Wrench Green Bridge25 Jun 200221 Jun 20062
Low Hutton DERCORS624 Apr 199521 Sept 20057
Barmby on the Marsh DERCORS2123 Sept 199711 Sept 20035
Breighton DERCORS2025 Apr 199510 Sept 20036
Yedingham DERCORS45 Sept 200128 Aug 20032
Downstream Wrench Green Bridge.DERBT225 Jun 200225 Jun 20021

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

1995–2021

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 34 measured fish were spread across different length ranges.

Smallest
15 cm
Lower quarter
22.3 cm
Median
30 cm
Upper quarter
41.1 cm
Largest
70 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent (Yorkshire)

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

Minnow Bullhead Stone loach Dace 3-spined stickleback Roach

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 →