European eel · Anguilla anguilla

European eel in the Roughley Burn

Largest measured european eel: 43 cm

The largest european eel measured in Environment Agency surveys of the Roughley Burn was 43 cm, recorded at 2181.00 Roughly Burn, Hermitage Water on 16 July 2021.

Across 66 measured european eel, the median measured length was 22.2 cm.

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

See european eel records across England →

Most recent observation28 July 20252181.00 Roughly Burn, Hermitage Water · 11 fish

Largest measured european eel: 43 cm
Median length: 22.2 cm
Fish measured: 66
Survey locations: 1

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
43 cm	16 Jul 2021	2181.00 Roughly Burn, Hermitage Water	160420
37.5 cm	1 Aug 2007	2181.00 Roughly Burn, Hermitage Water	108265
35 cm	26 Aug 2015	2181.00 Roughly Burn, Hermitage Water	146139
33 cm	7 Sept 2017	2181.00 Roughly Burn, Hermitage Water	151564
32.5 cm	21 Aug 2006	2181.00 Roughly Burn, Hermitage Water	103186
32 cm	28 Jul 2025	2181.00 Roughly Burn, Hermitage Water	177584
32 cm	27 Jul 2022	2181.00 Roughly Burn, Hermitage Water	161914
32 cm	26 Aug 2015	2181.00 Roughly Burn, Hermitage Water	146139
32 cm	4 Sept 2012	2181.00 Roughly Burn, Hermitage Water	133395
30 cm	26 Aug 2015	2181.00 Roughly Burn, Hermitage Water	146139

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
2181.00 Roughly Burn, Hermitage Water	17 Jul 2002	28 Jul 2025	18

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

2002–2025

Survey records by year

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

102

103

104

005

106

107

108

109

010

011

112

113

014

115

116

117

118

119

020

121

122

123

024

125

Fish measured by surveyors

Measured length distribution

See how the 66 measured fish were spread across different length ranges.

Smallest: 10 cm
Lower quarter: 15.7 cm
Median: 22.3 cm
Upper quarter: 28 cm
Largest: 43 cm

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 Roughley Burn

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

Atlantic salmon Brown / sea trout

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 →