Brook lamprey · Lampetra planeri

Brook lamprey in the Eel Survey

Largest measured brook lamprey: 18 cm

The largest brook lamprey measured in Environment Agency surveys of the Eel Survey was 18 cm, recorded at Noddy's House on 5 June 2008.

Across 17 measured brook lamprey, the median measured length was 13 cm.

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

See brook lamprey records across England →

Most recent observation23 April 2013Bossington · 3 fish

Largest measured brook lamprey: 18 cm
Median length: 13 cm
Fish measured: 17
Survey locations: 3

Individual EA measurements

Largest measured brook lamprey

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
18 cm	5 Jun 2008	Noddy's House	113552
18 cm	5 Jun 2008	Noddy's House	113552
17 cm	5 Jun 2008	Noddy's House	113552
15.5 cm	5 Jun 2008	Noddy's House	113552
15 cm	5 Jun 2008	Noddy's House	113552
14.5 cm	5 Jun 2008	Noddy's House	113552
13.5 cm	23 Apr 2013	Bossington	135899
13.5 cm	14 May 2008	Bossington	111447
13 cm	12 Apr 2012	Bossington	131105
13 cm	12 Apr 2012	Bossington	131105

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where brook lamprey were found

Each point marks a survey location with at least one brook lamprey 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 brook lamprey
Bossington	14 May 2008	23 Apr 2013	3
Bathpool	27 Jul 2011	27 Jul 2011	1
Noddy's House	5 Jun 2008	5 Jun 2008	1

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

2008–2013

Survey records by year

Each bar shows how many survey visits recorded brook lamprey that year.

208

009

010

111

112

113

Fish measured by surveyors

Measured length distribution

See how the 17 measured fish were spread across different length ranges.

Smallest: 10 cm
Lower quarter: 12 cm
Median: 13 cm
Upper quarter: 15 cm
Largest: 18 cm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Eel Survey

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

European eel Roach Gudgeon Bullhead Perch Stone loach

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 →