European eel · Anguilla anguilla

European eel in the Olchon Brook

Largest measured european eel: 52 cm

The largest european eel measured in Environment Agency surveys of the Olchon Brook was 52 cm, recorded at Brass Knoll on 19 September 2012.

Across 3 measured european eel, the median measured length was 42 cm.

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

See european eel records across England →

Most recent observation19 September 2012Brass Knoll · 3 fish

Largest measured european eel: 52 cm
Median length: 42 cm
Fish measured: 3
Survey locations: 3

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
52 cm	19 Sept 2012	Brass Knoll	133927
42 cm	19 Sept 2012	Brass Knoll	133927
22.5 cm	19 Sept 2012	Brass Knoll	133927

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
Brass Knoll	19 Sept 2012	19 Sept 2012	1
W059C	15 Sept 2003	15 Sept 2003	1
W059	30 Jul 1991	18 Aug 1997	4

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

1991–2012

Survey records by year

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

191

192

093

094

195

096

197

098

099

000

001

002

103

004

005

006

007

008

009

010

011

112

Fish measured by surveyors

Measured length distribution

See how the 3 measured fish were spread across different length ranges.

Smallest: 22.5 cm
Lower quarter: 32.3 cm
Median: 42 cm
Upper quarter: 47 cm
Largest: 52 cm

200–299 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Olchon Brook

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

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 →