Brook lamprey · Lampetra planeri

Brook lamprey in the River Little Avon

Largest measured brook lamprey: 18 cm

The largest brook lamprey measured in Environment Agency surveys of the River Little Avon was 18 cm, recorded at Noddy House on 5 June 2008.

Across 8 measured brook lamprey, the median measured length was 15.2 cm.

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

See brook lamprey records across England →

Most recent observation7 August 2024Noddy House

Largest measured brook lamprey: 18 cm
Median length: 15.2 cm
Fish measured: 8
Survey locations: 4

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 House	113549
18 cm	8 Aug 1994	Huntingford Mill, d/s Railway bridge	65862
16 cm	17 Apr 1978	d/s Charfield Bridge	65860
15.5 cm	5 Jun 2008	Noddy House	113549
15 cm	5 Jun 2008	Noddy House	113549
15 cm	8 Aug 1994	Middle Mill Farm	66040
15 cm	3 Jul 1991	Middle Mill Farm	66120
10 cm	5 Jun 2008	Noddy House	113549

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
Noddy House	5 Jun 2008	7 Aug 2024	2
Middle Mill Farm	3 Jul 1991	8 Aug 1994	2
Huntingford Mill, d/s Railway bridge	8 Aug 1994	8 Aug 1994	1
d/s Charfield Bridge	17 Apr 1978	17 Apr 1978	1

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

1978–2024

Survey records by year

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

178

079

080

081

082

083

084

085

086

087

088

089

090

191

092

093

294

095

096

097

098

099

000

001

002

003

004

005

006

007

108

009

010

011

012

013

014

015

016

017

018

019

020

021

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest: 10 cm
Lower quarter: 15 cm
Median: 15.3 cm
Upper quarter: 16.5 cm
Largest: 18 cm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Little Avon

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

European eel Minnow Stone loach Bullhead Brown / sea trout 3-spined stickleback

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 →