Brook lamprey · Lampetra planeri

Brook lamprey in the River Cone Pill

Largest measured brook lamprey: 17 cm

The largest brook lamprey measured in Environment Agency surveys of the River Cone Pill was 17 cm, recorded at Plusterwine (d/s bridge / ford) on 5 June 2009.

Across 80 measured brook lamprey, the median measured length was 12.5 cm.

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

See brook lamprey records across England →

Most recent observation5 June 2009Plusterwine (d/s bridge / ford) · 69 fish

Largest measured brook lamprey: 17 cm
Median length: 12.5 cm
Fish measured: 80
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
17 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
17 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
16.5 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
16 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
15.5 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
15 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
15 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
15 cm	5 Jun 2009	Plusterwine (d/s bridge / ford)	117641
15 cm	25 May 2004	Plusterwine (d/s bridge / ford)	79913
15 cm	9 Jan 2001	Small Brook	24157

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
Plusterwine (d/s bridge / ford)	25 May 2004	5 Jun 2009	2
Fishing lake (d/s WRW)	3 Apr 2002	27 May 2009	2
Alvington	27 May 2009	27 May 2009	1
Small Brook	9 Jan 2001	9 Jan 2001	1

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

2001–2009

Survey records by year

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

101

102

003

104

005

006

007

008

309

Fish measured by surveyors

Measured length distribution

See how the 80 measured fish were spread across different length ranges.

Smallest: 6.5 cm
Lower quarter: 10.9 cm
Median: 12.5 cm
Upper quarter: 14 cm
Largest: 17 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Cone Pill

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

European eel Brown / sea trout Bullhead 3-spined stickleback Flounder

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 →