RiverFish

European eel · Anguilla anguilla

European eel in the River Mersey

Largest measured european eel: 35.5 cm

The largest european eel measured in Environment Agency surveys of the River Mersey was 35.5 cm, recorded at Mrme45 on 17 August 2003.

Across 5 measured european eel, the median measured length was 25 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 Mersey.

See european eel records across England →

Most recent observation20 September 2009Mrme45 · 1 fish
Largest measured european eel
35.5 cm
Median length
25 cm
Fish measured
5
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
35.5 cm17 Aug 2003Mrme4579300
30 cm28 Oct 2007Mrme45108077
25 cm18 Sept 2005Mrme4586252
22 cm20 Sept 2009Mrme45120838
21.4 cm26 Sept 2004Mrme4582502

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
Mrme4517 Aug 200320 Sept 20095
Mrme334 Oct 20008 Oct 20002

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

2000–2009

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 5 measured fish were spread across different length ranges.

Smallest
21.4 cm
Lower quarter
22 cm
Median
25 cm
Upper quarter
30 cm
Largest
35.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mersey

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

Gudgeon Roach 3-spined stickleback Chub Minnow Perch

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 →