European eel · Anguilla anguilla

European eel in the Border Esk (upstream Ewes Water)

Largest measured european eel: 47.5 cm

The largest european eel measured in Environment Agency surveys of the Border Esk (upstream Ewes Water) was 47.5 cm, recorded at 2068.00 Boyken Burn, Border Esk on 6 September 2005.

Across 157 measured european eel, the median measured length was 22.5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Border Esk (upstream Ewes Water).

See european eel records across England →

Most recent observation24 July 20252068.00 Boyken Burn, Border Esk · 2 fish

Largest measured european eel: 47.5 cm
Median length: 22.5 cm
Fish measured: 157
Survey locations: 7

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
47.5 cm	6 Sept 2005	2068.00 Boyken Burn, Border Esk	88173
47.5 cm	6 Sept 2005	2068.00 Boyken Burn, Border Esk	88173
42.5 cm	6 Sept 2004	2057.00 Shielburn, Border Esk	83386
42.5 cm	6 Sept 2004	2057.00 Shielburn, Border Esk	83386
41 cm	14 Aug 2023	2068.00 Boyken Burn, Border Esk	162977
37.5 cm	17 Sept 2009	2070.00 Westerhall, Rig Burn	120960
37.5 cm	17 Sept 2009	2070.00 Westerhall, Rig Burn	120960
37.5 cm	14 Sept 2009	2055.00 Bank Burn Foot, Bank Head Burn	120957
37.5 cm	14 Sept 2009	2055.00 Bank Burn Foot, Bank Head Burn	120957
37 cm	24 Jul 2014	2068.00 Boyken Burn, Border Esk	141873

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
2068.00 Boyken Burn, Border Esk	11 Jul 1985	24 Jul 2025	19
2057.00 Shielburn, Border Esk	6 Sept 2004	4 Aug 2022	5
2071.00 Craig Burn	7 Sept 2004	11 Aug 2021	4
2070.00 Westerhall, Rig Burn	7 Sept 2004	11 Aug 2021	4
2056.00 Billholm Burn	7 Sept 2004	14 Sept 2009	2
2055.00 Bank Burn Foot, Bank Head Burn	8 Sept 2005	14 Sept 2009	2
2072.00 Burnfoot, Back Burn	7 Sept 2004	7 Sept 2004	1

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.

185

086

087

088

089

090

091

092

093

094

195

096

097

098

099

000

001

102

103

604

205

106

107

108

409

110

011

112

013

114

415

216

017

018

119

020

421

222

123

024

125

Fish measured by surveyors

Measured length distribution

See how the 157 measured fish were spread across different length ranges.

Smallest: 6 cm
Lower quarter: 17.5 cm
Median: 22.5 cm
Upper quarter: 27.5 cm
Largest: 47.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Border Esk (upstream Ewes Water)

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

Brown / sea trout Stone loach Atlantic salmon

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 →