European eel · Anguilla anguilla

European eel in the River Upper Ouse

Largest measured european eel: 98 cm

The largest european eel measured in Environment Agency surveys of the River Upper Ouse was 98 cm, recorded at Oakley on 10 July 2003.

Across 35 measured european eel, the median measured length was 73 cm.

Surveyors recorded weights for 28 european eel. The median was 1 lb 11.9 oz (0.7915 kg) and the largest recorded weight was 4 lb 4.8 oz (1.95 kg).

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

See european eel records across England →

Most recent observation31 August 2023Kempston Mill · 1 fish

Largest measured european eel: 98 cm
Median length: 73 cm
Fish measured: 35
Survey locations: 13

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
98 cm	10 Jul 2003	Oakley	76555
91 cm	22 Jul 2009	Turvey	117964
90 cm	1 Aug 2008	Turvey	112217
89 cm	24 Jul 2006	Newport Pagnell	100292
87.2 cm	24 Aug 2011	Turvey	127524
85 cm	3 Sept 2004	Stoke Mill Sharnbrook	82009
85 cm	10 Jul 2003	Oakley	76555
83.2 cm	30 Jul 2014	Turvey	141963
80.1 cm	31 Aug 2023	Kempston Mill	163095
80 cm	10 Jul 2003	Oakley	76555

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
Kempston Mill	6 Mar 1992	31 Aug 2023	4
Turvey	31 Oct 1991	30 Jul 2014	7
Oakley	25 Oct 1994	10 Oct 2011	7
Newport Pagnell	25 Oct 1991	24 Jul 2006	4
Mount Mill Farm	18 May 2006	18 May 2006	1
Radwell / Bletsoe	6 Jun 2003	15 Jul 2005	2
Milton Ernest STW	7 Sept 2004	7 Sept 2004	1
Stoke Mill Sharnbrook	3 Sept 2004	3 Sept 2004	1
Mill Farm Gayhurst	11 Jun 1997	11 Jun 1997	1
Milton Ernest	12 Mar 1992	19 Oct 1994	2
Clifton Reynes	28 Sept 1994	28 Sept 1994	1
Odell	21 Nov 1988	16 Mar 1992	2
Pavenham	11 Nov 1988	10 Mar 1992	2

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

1988–2023

Survey records by year

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

288

089

090

291

492

093

494

095

096

197

098

099

000

101

002

303

404

105

406

007

208

209

010

311

012

013

114

015

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 35 measured fish were spread across different length ranges.

Smallest: 33 cm
Lower quarter: 62.7 cm
Median: 73 cm
Upper quarter: 80.1 cm
Largest: 98 cm

300–399 mm

400–499 mm

500–599 mm

600–699 mm

700–799 mm

800–899 mm

900–999 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 28 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 8 oz (0.228 kg)
Lower quarter: 1 lb 0.2 oz (0.4598 kg)
Median: 1 lb 11.9 oz (0.7915 kg)
Upper quarter: 2 lb 9 oz (1.16 kg)
Heaviest: 4 lb 4.8 oz (1.95 kg)

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

More fish in this river

Explore the River Upper Ouse

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

Pike Perch Dace Roach Chub Gudgeon

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 →