RiverFish

European eel · Anguilla anguilla

European eel in the Main Holywell Stream

Largest measured european eel: 29.1 cm

The largest european eel measured in Environment Agency surveys of the Main Holywell Stream was 29.1 cm, recorded at u/s Ellenglaze on 14 August 2000.

Across 15 measured european eel, the median measured length was 19.7 cm.

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

See european eel records across England →

Most recent observation14 September 2017Upstream Treludderow Stream · 1 fish
Largest measured european eel
29.1 cm
Median length
19.7 cm
Fish measured
15
Survey locations
3

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
29.1 cm14 Aug 2000u/s Ellenglaze135701
28.5 cm14 Aug 2000u/s Ellenglaze135701
26 cm29 Aug 2000Holywell135778
25 cm29 Aug 2000Holywell135778
24.7 cm14 Aug 2000u/s Ellenglaze135701
22.1 cm14 Sept 2017Upstream Treludderow Stream152216
21 cm1 Jun 2005u/s Ellenglaze86800
19.7 cm14 Aug 2000u/s Ellenglaze135701
18.3 cm14 Aug 2000u/s Ellenglaze135701
17.3 cm14 Aug 2000u/s Ellenglaze135701

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
Upstream Treludderow Stream14 Sept 201714 Sept 20171
u/s Ellenglaze14 Aug 20001 Jun 20052
Holywell29 Aug 200029 Aug 20001

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

2000–2017

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 15 measured fish were spread across different length ranges.

Smallest
12 cm
Lower quarter
15.6 cm
Median
19.7 cm
Upper quarter
24.9 cm
Largest
29.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main Holywell Stream

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

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 →