RiverFish

European eel · Anguilla anguilla

European eel in the Birker Beck

Largest measured european eel: 30 cm

The largest european eel measured in Environment Agency surveys of the Birker Beck was 30 cm, recorded at 1976.00 PTC River Esk #2, Birker Beck on 21 August 2025.

Across 43 measured european eel, the median measured length was 15 cm.

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

See european eel records across England →

Most recent observation21 August 20251976.00 PTC River Esk #2, Birker Beck · 16 fish
Largest measured european eel
30 cm
Median length
15 cm
Fish measured
43
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
30 cm21 Aug 20251976.00 PTC River Esk #2, Birker Beck178449
29 cm8 Aug 20191976.00 PTC River Esk #2, Birker Beck155129
28 cm8 Aug 20231976.10 Birker Beck US Footbridge CPUE162945
27.5 cm28 Aug 20071976.00 PTC River Esk #2, Birker Beck107437
26 cm26 Sept 20241976.10 Birker Beck US Footbridge CPUE167390
25 cm8 Aug 20231976.10 Birker Beck US Footbridge CPUE162945
25 cm8 Aug 20191976.00 PTC River Esk #2, Birker Beck155129
24 cm26 Sept 20241976.10 Birker Beck US Footbridge CPUE167390
22 cm8 Aug 20191976.00 PTC River Esk #2, Birker Beck155129
21 cm21 Aug 20251976.00 PTC River Esk #2, Birker Beck178449

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
1976.00 PTC River Esk #2, Birker Beck7 Aug 200221 Aug 20255
1976.10 Birker Beck US Footbridge CPUE8 Aug 202326 Sept 20242

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

2002–2025

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 43 measured fish were spread across different length ranges.

Smallest
6 cm
Lower quarter
11 cm
Median
15 cm
Upper quarter
20.5 cm
Largest
30 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Birker Beck

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

Brown / sea trout Atlantic salmon

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 →