RiverFish

Brook lamprey · Lampetra planeri

Brook lamprey in the River Main Neet

Largest measured brook lamprey: 16 cm

The largest brook lamprey measured in Environment Agency surveys of the River Main Neet was 16 cm, recorded at Treforda on 13 September 2010.

Across 18 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 Main Neet.

See brook lamprey records across England →

Most recent observation13 September 2010Hele Barton · 2 fish
Largest measured brook lamprey
16 cm
Median length
12.5 cm
Fish measured
18
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.

LengthSurvey dateSurvey locationSurvey ID
16 cm13 Sept 2010Treforda123841
15.1 cm6 Aug 2010Woolstone Viaduct123386
14 cm13 Sept 2010Treforda123841
14 cm13 Sept 2010Treforda123841
13.5 cm13 Sept 2010Treforda123841
13.5 cm13 Sept 2010Treforda123841
13.5 cm10 Aug 2010Penfound Manor123389
12.5 cm13 Sept 2010Hele Barton123842
12.5 cm13 Sept 2010Treforda123841
12.5 cm13 Sept 2010Treforda123841

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 surveyedFirst recordedLast recordedVisits finding brook lamprey
Treforda13 Sept 201013 Sept 20101
Hele Barton13 Sept 201013 Sept 20101
Penfound Manor10 Aug 201010 Aug 20101
Woolstone Viaduct6 Aug 20106 Aug 20101

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

2010–2010

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 18 measured fish were spread across different length ranges.

Smallest
9 cm
Lower quarter
11.4 cm
Median
12.5 cm
Upper quarter
13.5 cm
Largest
16 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Neet

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

Brown / sea trout Minnow Bullhead Stone loach European eel

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 →