RiverFish

European eel · Anguilla anguilla

European eel in the Blackaton Brook

Largest measured european eel: 35 cm

The largest european eel measured in Environment Agency surveys of the Blackaton Brook was 35 cm, recorded at Highbury (Te/WFD) on 11 July 2019.

Across 3 measured european eel, the median measured length was 31 cm.

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

See european eel records across England →

Most recent observation18 July 2025Highbury (Te/WFD) · 1 fish
Largest measured european eel
35 cm
Median length
31 cm
Fish measured
3
Survey locations
2

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
35 cm11 Jul 2019Highbury (Te/WFD)154773
31 cm3 Aug 2018Highbury (Te/WFD)153018
28 cm6 Aug 2024Highbury (Te/WFD)167893

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
Highbury (Te/WFD)9 Jul 199618 Jul 202512
Ash Bridge (Sp)9 Jul 19965 Aug 20022

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 3 measured fish were spread across different length ranges.

Smallest
28 cm
Lower quarter
29.5 cm
Median
31 cm
Upper quarter
33 cm
Largest
35 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Blackaton Brook

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

Atlantic salmon Brown / sea trout

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 →