Brook lamprey · Lampetra planeri

Brook lamprey in the Ell Brook

Largest measured brook lamprey: 19 cm

The largest brook lamprey measured in Environment Agency surveys of the Ell Brook was 19 cm, recorded at Tibberton on 21 August 1996.

Across 16 measured brook lamprey, the median measured length was 16.5 cm.

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

See brook lamprey records across England →

Most recent observation18 August 2005Tibberton · 4 fish

Largest measured brook lamprey: 19 cm
Median length: 16.5 cm
Fish measured: 16
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
19 cm	21 Aug 1996	Tibberton	80271
19 cm	21 Aug 1996	Tibberton	80271
18 cm	21 Aug 1996	Tibberton	80271
17.7 cm	7 Oct 1986	Poykes Farm, Newent	24993
17 cm	18 Aug 2005	Tibberton	85552
17 cm	21 Aug 1996	Tibberton	80271
17 cm	21 Aug 1996	Poykes Farm, Newent	25048
17 cm	7 Oct 1986	Poykes Farm, Newent	24993
16 cm	4 Mar 1992	Kilcot, oxenhall	52278
15.8 cm	7 Oct 1986	Poykes Farm, Newent	24993

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
Tibberton	21 Aug 1996	18 Aug 2005	2
Poykes Farm, Newent	7 Oct 1986	21 Aug 1996	2
Kilcot, oxenhall	4 Mar 1992	4 Mar 1992	1

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

1986–2005

Survey records by year

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

186

087

088

089

090

091

192

093

094

095

296

097

098

099

000

001

002

003

004

105

Fish measured by surveyors

Measured length distribution

See how the 16 measured fish were spread across different length ranges.

Smallest: 11 cm
Lower quarter: 14.8 cm
Median: 16.5 cm
Upper quarter: 17.2 cm
Largest: 19 cm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Ell Brook

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

Brown / sea trout European eel Bullhead Roach 3-spined stickleback 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 →