European eel · Anguilla anguilla

European eel in the River Blackwater

Largest measured european eel: 96.1 cm

The largest european eel measured in Environment Agency surveys of the River Blackwater was 96.1 cm, recorded at Hawley Meadows on 14 April 2005.

Across 11 measured european eel, the median measured length was 76 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 Blackwater.

See european eel records across England →

Most recent observation26 April 2022Riseley · 1 fish

Largest measured european eel: 96.1 cm
Median length: 76 cm
Fish measured: 11
Survey locations: 5

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
96.1 cm	14 Apr 2005	Hawley Meadows	84391
95 cm	22 May 2013	Downstream Riseley	136069
79 cm	8 Apr 2003	Riseley	75804
78 cm	26 Mar 2003	Hawley Meadows	75778
77.2 cm	23 Apr 2007	Riseley	105118
76 cm	28 Apr 2006	Riseley	90816
68 cm	18 May 2016	Riseley	148038
66.5 cm	20 Apr 2010	Riseley	121416
63 cm	16 Apr 2019	Riseley	154458
60 cm	15 Apr 2010	Eversley Cross	121386

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
Riseley	8 Apr 2003	26 Apr 2022	7
Downstream Riseley	5 Feb 1991	22 May 2013	2
Eversley Cross	15 Apr 2010	15 Apr 2010	1
Hawley Meadows	26 Mar 2003	14 Apr 2005	2
Grove Farm	23 Nov 1990	23 Nov 1990	1

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

1990–2022

Survey records by year

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

190

191

092

093

094

095

096

097

098

099

000

001

002

203

004

105

106

107

008

009

210

011

012

113

014

015

116

017

018

119

020

021

122

Fish measured by surveyors

Measured length distribution

See how the 11 measured fish were spread across different length ranges.

Smallest: 35 cm
Lower quarter: 64.8 cm
Median: 76 cm
Upper quarter: 78.5 cm
Largest: 96.1 cm

300–399 mm

600–699 mm

700–799 mm

900–999 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blackwater

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

Roach Chub Gudgeon Pike Dace Perch

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 →