European eel · Anguilla anguilla

European eel in the Main River Yeo

Largest measured european eel: 75.5 cm

The largest european eel measured in Environment Agency surveys of the Main River Yeo was 75.5 cm, recorded at Great Yard, Ilchester on 22 June 1993.

Across 574 measured european eel, the median measured length was 33 cm.

Surveyors recorded weights for 549 european eel. The median was 2.5 oz (0.071 kg) and the largest recorded weight was 2 lb 3.3 oz (1 kg).

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

See european eel records across England →

Most recent observation30 July 2015Up Mudford Investigation Site · 2 fish

Largest measured european eel: 75.5 cm
Median length: 33 cm
Fish measured: 574
Survey locations: 24

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.

Length	Survey date	Survey location	Survey ID
75.5 cm	22 Jun 1993	Great Yard, Ilchester	79876
66.5 cm	10 Jun 1993	Downstream Load Bridge	79895
65 cm	25 May 2004	Yeovil Bridge (Te)	80053
64 cm	23 Jul 1993	Bradford Abbas (Te)	79816
62 cm	4 Jun 2003	Downstream Sherborne Lake (Te)	76076
62 cm	23 Jul 1993	Bradford Abbas (Te)	79816
62 cm	23 Jun 1993	Downstream Hainbury Mill	79863
61 cm	22 Jun 1993	Great Yard, Ilchester	79876
60.5 cm	4 Jun 2003	Downstream Sherborne Lake (Te)	76076
60 cm	25 May 2004	Yeovil Bridge (Te)	80053

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 surveyed	First recorded	Last recorded	Visits finding european eel
Up Mudford Investigation Site	30 Jul 2015	30 Jul 2015	1
Yeovil Bridge (Te)	5 Aug 2003	17 Jul 2014	9
Mudford	10 Jul 2013	10 Jul 2013	1
Pibsbury Pumping Station (Te)	3 Oct 2003	9 Jul 2013	4
Sherborne STW	21 Jul 2010	21 Jul 2010	1
Gas Works d/s Ilchester (Te)	18 Oct 2006	18 Oct 2006	1
Downstream Sherborne Lake (Te)	4 Jun 2003	23 Jun 2005	3
Clifton Maybank (Te)	25 Aug 2004	25 Aug 2004	1
Bradford Abbas (Te)	23 Jul 1993	4 Jun 2003	2
Upstream confl. Sherborne Lake Stream	29 Jul 1993	29 Jul 1993	1
Honeycombe Farm	28 Jul 1993	28 Jul 1993	1
Upstream Lake Borehole	27 Jul 1993	27 Jul 1993	1
Downstream Pen Mill Gauging Station	20 Jul 1993	20 Jul 1993	1
Newton Surmaville	15 Jul 1993	15 Jul 1993	1
Over Compton	13 Jul 1993	13 Jul 1993	1
Up Mudford	8 Jul 1993	8 Jul 1993	1
Downstream Yeovilton Weir	6 Jul 1993	6 Jul 1993	1
Witcomb Drove	30 Jun 1993	30 Jun 1993	1
Upstream Ashington Bridge	29 Jun 1993	29 Jun 1993	1
Manor Farm, Ashington	24 Jun 1993	24 Jun 1993	1
Downstream Hainbury Mill	23 Jun 1993	23 Jun 1993	1
Great Yard, Ilchester	22 Jun 1993	22 Jun 1993	1
Downstream Load Bridge	10 Jun 1993	10 Jun 1993	1
Downstream Ablake	8 Jun 1993	8 Jun 1993	1

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

1993–2015

Survey records by year

Each bar shows how many survey visits recorded european eel that year.

1693

094

095

096

097

098

099

000

001

002

403

404

105

306

107

008

009

210

111

112

313

114

115

Fish measured by surveyors

Measured length distribution

See how the 574 measured fish were spread across different length ranges.

Smallest: 6 cm
Lower quarter: 27.5 cm
Median: 33 cm
Upper quarter: 38.4 cm
Largest: 75.5 cm

0–99 mm

100–199 mm

200–299 mm

149

300–399 mm

255

400–499 mm

500–599 mm

600–699 mm

700–799 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 549 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 1.3 oz (0.036 kg)
Median: 2.5 oz (0.071 kg)
Upper quarter: 4 oz (0.112 kg)
Heaviest: 2 lb 3.3 oz (1 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Main River Yeo

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

Gudgeon Chub Roach Dace 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 →