RiverFish

European eel · Anguilla anguilla

European eel in the River Glenderamackin

Largest measured european eel: 42 cm

The largest european eel measured in Environment Agency surveys of the River Glenderamackin was 42 cm, recorded at 1547.30 Guardhouse, Glenderamackin on 1 September 2010.

Across 17 measured european eel, the median measured length was 23 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 Glenderamackin.

See european eel records across England →

Most recent observation14 July 20251547.20 US of Trout Beck, River Glenderamackin · 1 fish
Largest measured european eel
42 cm
Median length
23 cm
Fish measured
17
Survey locations
4

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
42 cm1 Sept 20101547.30 Guardhouse, Glenderamackin123629
37.5 cm19 Jul 20041547.20 US of Trout Beck, River Glenderamackin81552
34 cm31 Aug 20101547.10 Mungrisedale, Glenderamackin123628
32 cm1 Sept 20101547.30 Guardhouse, Glenderamackin123629
30 cm15 Jul 20031547.20 US of Trout Beck, River Glenderamackin78556
29 cm31 Aug 20101547.10 Mungrisedale, Glenderamackin123628
27.5 cm20 Jul 20061547.20 US of Trout Beck, River Glenderamackin102889
27 cm31 Aug 20101547.10 Mungrisedale, Glenderamackin123628
23 cm8 Sept 20161547.20 US of Trout Beck, River Glenderamackin149452
22.5 cm20 Jul 20061547.20 US of Trout Beck, River Glenderamackin102889

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
1547.20 US of Trout Beck, River Glenderamackin8 Sept 199914 Jul 20258
1547.10 Mungrisedale, Glenderamackin8 Sept 199924 Jul 20133
1547.30 Guardhouse, Glenderamackin6 Sept 19991 Sept 20102
1547.40 Townfield Bridge, Glenderamackin6 Sept 19996 Sept 19991

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

1999–2025

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 17 measured fish were spread across different length ranges.

Smallest
10 cm
Lower quarter
21 cm
Median
23 cm
Upper quarter
30 cm
Largest
42 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Glenderamackin

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 →