RiverFish

Brook lamprey · Lampetra planeri

Brook lamprey in the River Manifold

Largest measured brook lamprey: 17.1 cm

The largest brook lamprey measured in Environment Agency surveys of the River Manifold was 17.1 cm, recorded at Swainsley, Dovecote Pool on 24 September 2015.

Across 43 measured brook lamprey, the median measured length was 11.5 cm.

Surveyors recorded weights for 3 brook lamprey. The median was 0.4 oz (0.011 kg) and the largest recorded weight was 0.4 oz (0.012 kg).

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

See brook lamprey records across England →

Most recent observation24 September 2015Swainsley, Dovecote Pool · 3 fish
Largest measured brook lamprey
17.1 cm
Median length
11.5 cm
Fish measured
43
Survey locations
7

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
17.1 cm24 Sept 2015Swainsley, Dovecote Pool146930
16.8 cm5 Sept 2013Brund139190
15.3 cm5 Sept 2013Brund139190
15.1 cm24 Sept 2015Swainsley, Dovecote Pool146930
14.5 cm15 Apr 2010Brund123149
14.5 cm15 Apr 2010Hardings Booth123152
14.1 cm13 Apr 2010Wetton Mill121812
14 cm24 Sept 2015Swainsley, Dovecote Pool146930
14 cm5 Sept 2013Hulme End139185
14 cm13 Apr 2010Wetton Mill121812

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
Swainsley, Dovecote Pool24 Sept 201524 Sept 20151
Hulme End9 Nov 20045 Sept 20132
Brund15 Apr 20105 Sept 20132
Hardings Booth15 Apr 201015 Apr 20101
Wetton Mill1 Oct 200313 Apr 20104
Windy Arbour Bridge3 Apr 20083 Apr 20081
Waterhouse Farm3 Apr 20083 Apr 20081

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

2003–2015

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 43 measured fish were spread across different length ranges.

Smallest
5 cm
Lower quarter
8 cm
Median
11.5 cm
Upper quarter
13.7 cm
Largest
17.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 brook lamprey. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.4 oz (0.01 kg)
Lower quarter
0.4 oz (0.0105 kg)
Median
0.4 oz (0.011 kg)
Upper quarter
0.4 oz (0.0115 kg)
Heaviest
0.4 oz (0.012 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Manifold

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

Brown / sea trout Bullhead Stone loach Minnow Grayling

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 →