RiverFish

European eel · Anguilla anguilla

European eel in the River Crooked Oak

Largest measured european eel: 50.5 cm

The largest european eel measured in Environment Agency surveys of the River Crooked Oak was 50.5 cm, recorded at Ashmill (Te) on 4 July 2017.

Across 40 measured european eel, the median measured length was 26.5 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 Crooked Oak.

See european eel records across England →

Most recent observation28 July 2025Harpsom Wood (Sp) · 1 fish
Largest measured european eel
50.5 cm
Median length
26.5 cm
Fish measured
40
Survey locations
6

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
50.5 cm4 Jul 2017Ashmill (Te)150819
37.5 cm9 Jun 2011Ashmill (Te)126841
37 cm20 Jun 2018Ashmill (Te)152668
36 cm16 Jul 2015Ashmill (Te)145430
36 cm16 Jul 2015Ashmill (Te)145430
33.5 cm4 Jul 2017Ashmill (Te)150819
33 cm20 Jun 2018Ashmill (Te)152668
32.2 cm26 Jun 2025Ashmill (Te)177128
32 cm20 Jun 2018Ashmill (Te)152668
31.5 cm23 Jun 2010Ashmill (Te)122419

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
Harpsom Wood (Sp)19 Aug 199628 Jul 20253
Ashmill (Te)19 Aug 199626 Jun 202518
Eastwood Farm (Sp)21 Aug 199630 Aug 20183
Yeo Bridge (Sp)29 Aug 201829 Aug 20181
Alswear (Sp)*21 Aug 19963 Sept 19992
Owlaborough (Sp)*26 Aug 199926 Aug 19991

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

1996–2025

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 40 measured fish were spread across different length ranges.

Smallest
12.1 cm
Lower quarter
19.7 cm
Median
26.5 cm
Upper quarter
30.8 cm
Largest
50.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Crooked Oak

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

Brown / sea trout Bullhead Atlantic salmon Stone loach Minnow

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 →