European eel · Anguilla anguilla

European eel in the River Tees

Largest measured european eel: 70.5 cm

The largest european eel measured in Environment Agency surveys of the River Tees was 70.5 cm, recorded at Temporal Coarse, Low Coniscliffe on 10 August 2016.

Across 401 measured european eel, the median measured length was 33.2 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 Tees.

See european eel records across England →

Most recent observation10 October 2025SAP/BT Annual, River Greta - Brignall Mill · 1 fish

Largest measured european eel: 70.5 cm
Median length: 33.2 cm
Fish measured: 401
Survey locations: 58

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
70.5 cm	10 Aug 2016	Temporal Coarse, Low Coniscliffe	149002
68 cm	20 Oct 2011	SAP/BT Annual, Egglestone Abbey	128796
67 cm	21 Aug 2014	Temporal Coarse, Low Moor	142488
65 cm	3 Oct 2011	Temporal Coarse, Low Moor	128317
64.3 cm	20 Oct 2011	SAP/BT Annual, Egglestone Abbey	128796
61 cm	29 Sept 2015	SAP/BT Annual, Bowlees Beck - D/s Picnic Site	146727
61 cm	1 Oct 2013	SAP/BT Annual, River Greta - Brignall Mill	139234
61 cm	4 Sept 2013	Temporal Coarse, Low Moor	139461
59.1 cm	3 Oct 2013	WFD O Clow Beck at Clow Beck Farm	139087
58.7 cm	14 Aug 2007	Temporal Coarse, Croft	108693

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
SAP/BT Annual, River Greta - Brignall Mill	16 Oct 2000	10 Oct 2025	10
Temporal Coarse, Low Worsall	16 Sept 2002	15 Aug 2025	6
Temporal Coarse, Neasham	13 Aug 2001	11 Aug 2025	18
Temporal Coarse, Croft	15 Aug 2001	11 Aug 2025	14
Temporal Coarse, Low Moor	18 Sept 2002	4 Aug 2025	19
SAP/BT Quin, River Leven, Crathorne	1 Jul 2005	26 Jun 2023	3
SAP/BT Quin, River Leven, Bense Bridge	29 Jun 2005	26 Jun 2023	3
SAP/BT Quin, River Leven D/s Foxton Bridge	1 Jul 2005	26 Jun 2023	3
SAP/BT Quin, River Leven, Hutton Rudby	1 Jul 2005	23 Jun 2023	3
SAP/BT Quin, River Leven, Angrove West Farm	29 Jun 2005	23 Jun 2023	3
SAP/BT Annual, Summerhouse Beck - Piercebridge	12 Sept 2005	12 Oct 2022	4
Temporal Coarse, Low Haile Bridge	19 Sept 2002	18 Sept 2018	15
Temporal Coarse, Low Coniscliffe	8 Aug 2001	24 Aug 2017	8
SAP/BT Quin, Clow Beck, Aldbrough St John	16 Nov 2004	12 Sept 2016	2
SAP/BT Annual, Clow Beck - Monk End Farm	17 Oct 2000	12 Sept 2016	9
SAP/BT Annual, Broken Scar	13 Oct 1999	10 Aug 2016	15
SAP/BT Quin, Rowton Beck, Low Wray Farm	29 Jul 2016	29 Jul 2016	1
SAP/BT Quin, Sudburn Beck, Bow Bridge	26 Jul 2016	26 Jul 2016	1
SAP/BT Annual, Bowlees Beck - D/s Picnic Site	12 Sept 2005	29 Sept 2015	2
Temporal Coarse, Blackwell Bridge	7 Oct 2002	10 Sept 2015	9
Ormsby Beck - North Ormsby	6 Sept 2015	6 Sept 2015	1
Marton West Beck - Fairy Dell	6 Sept 2015	6 Sept 2015	1
SAP/BT Quin, Maltby Beck, Maltby	20 Nov 2014	20 Nov 2014	1
WFD O Clow Beck at Clow Beck Farm	3 Oct 2013	3 Oct 2013	1
Ormsby Beck - Ormsby Hall	20 Sept 2013	20 Sept 2013	1
Marton West Beck - Golf Course	20 Sept 2013	20 Sept 2013	1
SAP/BT Annual, Egglestone Abbey	15 Sept 1995	20 Oct 2011	6
Temporal Coarse, Swine Lairs u/s ford	10 Aug 2001	21 Oct 2010	7
SAP/BT Quin, Downstream Swine Lairs	21 Oct 2010	21 Oct 2010	1
Temporal Coarse, Middleton One Row	23 Aug 2001	14 Oct 2010	8
Temporal Coarse, Bassleton Beck - U/s pipe bridge	10 Sept 2001	14 Sept 2010	2
Temporal Coarse, Thornaby - U/s The Holmes	6 Sept 2001	13 Sept 2010	2
Temporal Coarse, Broken Scar	21 Aug 2002	7 Sept 2010	7
SAP/BT Quin, Spa Beck, Spa Cottage	6 Sept 2010	6 Sept 2010	1
SAP/BT Quin, Langley Beck, Selaby Ford	6 Sept 2010	6 Sept 2010	1
SAP/BT Quin, Clow Beck, Willow Bridge	29 Jun 2010	29 Jun 2010	1
SAP/BT Quin, Spa Beck, Old Spa Farm	22 Sept 2008	22 Sept 2008	1
Spatial Coarse, Sockburn	25 Sept 2006	25 Sept 2006	1
Spatial Coarse, Girsby	25 Sept 2006	25 Sept 2006	1
SAP/BT Quin, Girsby	25 Sept 2006	25 Sept 2006	1
Spatial Coarse, U/s Tees Barrage	13 Sept 2006	13 Sept 2006	1
Temporal Coarse, Winston	15 Sept 1995	5 Oct 2005	6
Temporal Coarse, Clow Beck - Monk End Farm	9 Aug 2001	18 Aug 2005	3
SAP/BT Quin, River Greta, Greta Bridge	21 Jun 2005	21 Jun 2005	1
Spatial Coarse, Saltersgill Beck, Saltersgill	17 Nov 2004	17 Nov 2004	1
Spatial Coarse, Saltersgill Beck, High Worsall	17 Nov 2004	17 Nov 2004	1
SAP/BT Annual, High Coniscliffe	15 Sept 1995	29 Sept 2003	7
SAP/BT Quin, Gainford	18 Sept 2003	18 Sept 2003	1
Spatial Coarse, Blackwell Pumping Station	10 Aug 2000	17 Sept 2003	4
SAP/BT Annual, River Balder - Cotherstone	7 Oct 1998	25 Sept 2002	2
Temporal Coarse, Langley Beck	19 Aug 2002	19 Aug 2002	1
Spatial Coarse, Kent Beck, Neasham	17 Jun 2002	17 Jun 2002	1
Temporal Coarse, High Coniscliffe	13 Sept 2001	13 Sept 2001	1
Temporal Coarse, Egglescliffe - Leven Mouth	12 Sept 2001	12 Sept 2001	1
Temporal Coarse, Aislaby	3 Sept 2001	3 Sept 2001	1
SAP/BT Quin, Wycliffe	15 Sept 1995	27 Oct 2000	4
SAP/BT Quin, Percy Beck, Barnard Castle	12 Oct 2000	12 Oct 2000	1
WR Monitoring Blackwell Pumping Station u/s	10 Aug 2000	10 Aug 2000	1

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

1995–2025

Survey records by year

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

495

196

397

198

399

700

1501

2002

1703

1504

2205

1506

707

208

1009

1810

1111

012

1013

614

915

916

617

418

219

020

021

322

723

024

525

Fish measured by surveyors

Measured length distribution

See how the 401 measured fish were spread across different length ranges.

Smallest: 7 cm
Lower quarter: 23.1 cm
Median: 33.2 cm
Upper quarter: 42.7 cm
Largest: 70.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

107

400–499 mm

500–599 mm

600–699 mm

700–799 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Tees

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

Brown / sea trout Bullhead Minnow Stone loach Atlantic salmon Dace

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 →