RiverFish

European eel · Anguilla anguilla

European eel in the River Mole

Largest measured european eel: 92 cm

The largest european eel measured in Environment Agency surveys of the River Mole was 92 cm, recorded at Below Downside Bridge, Cobham. on 8 October 2003.

Across 328 measured european eel, the median measured length was 40.8 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 Mole.

See european eel records across England →

Most recent observation29 July 2025Castlefields · 1 fish
Largest measured european eel
92 cm
Median length
40.8 cm
Fish measured
328
Survey locations
17

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
92 cm8 Oct 2003Below Downside Bridge, Cobham.77675
90 cm25 Nov 2005Randalls Road, Leatherhead88088
89.5 cm25 Sept 2003Meath Green Farm, Horley77154
89 cm19 Oct 2005Below Downside Bridge, Cobham.87637
88 cm23 Oct 2007Downstream Painshill108002
84 cm19 Oct 2005Below Downside Bridge, Cobham.87637
83.6 cm8 Oct 2003Below Downside Bridge, Cobham.77675
81.5 cm9 Mar 1993Norwood Farm Downstream Cobham103155
80 cm14 Nov 1985Below Downside Bridge, Cobham.103358
79.5 cm19 Oct 2005Below Downside Bridge, Cobham.87637

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
Castlefields29 Jul 202529 Jul 20251
Downstream Gatwick8 Sept 19929 Jul 20252
Stoke D'Abernon25 Jun 202525 Jun 20251
Downstream Downside Mill25 Feb 199324 Jun 20253
Norbury Park, Near Mickleham17 Oct 202317 Oct 20231
Old Mole Channel20 Jun 198617 Oct 20128
Downstream Painshill23 Oct 20071 Oct 20082
Randalls Road, Leatherhead18 Feb 199325 Nov 20052
Below Downside Bridge, Cobham.14 Nov 198519 Oct 20055
Meath Green Farm, Horley25 Sept 200325 Sept 20031
South Weylands Farm7 May 19937 May 19931
Norwood Farm Downstream Cobham9 Mar 19939 Mar 19931
St George's playing fields, Stoke D'Abernon23 Feb 199323 Feb 19931
Upstream Sidlow Bridge18 May 198918 May 19891
Upstream Horley STW19 Sept 198516 May 19892
Upstream M25 at Stoke D'Abernon (Right Arm)22 Oct 198522 Oct 19851
Burys Court School, Upstream Flanchford Bridge1 Oct 19851 Oct 19851

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

1985–2025

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 328 measured fish were spread across different length ranges.

Smallest
18.7 cm
Lower quarter
32.7 cm
Median
40.8 cm
Upper quarter
48.9 cm
Largest
92 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mole

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

Roach Dace Chub Gudgeon Minnow Stone loach

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 →