RiverFish

Bullhead · Cottus gobio

Bullhead in the River Lemon

Largest measured bullhead: 7.9 cm

The largest bullhead measured in Environment Agency surveys of the River Lemon was 7.9 cm, recorded at Halfway House (Sp) on 17 May 2022.

Across 105 measured bullhead, the median measured length was 5.6 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 Lemon.

See bullhead records across England →

Most recent observation15 July 2025Halfway House (Sp) · 60 fish
Largest measured bullhead
7.9 cm
Median length
5.6 cm
Fish measured
105
Survey locations
2

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
7.9 cm17 May 2022Halfway House (Sp)160937
7.9 cm30 Jul 2007Halfway House (Sp)108570
7.7 cm30 Jul 2007Halfway House (Sp)108570
7.4 cm17 May 2022Halfway House (Sp)160937
7.4 cm26 Jun 2019Halfway House (Sp)154664
7.3 cm17 May 2022Bradley Manor (Sp)*160936
7.1 cm26 Jun 2019Halfway House (Sp)154664
6.9 cm17 May 2022Halfway House (Sp)160937
6.8 cm17 May 2022Bradley Manor (Sp)*160936
6.8 cm17 May 2022Bradley Manor (Sp)*160936

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where bullhead were found

Each point marks a survey location with at least one bullhead 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 bullhead
Halfway House (Sp)17 Jul 199615 Jul 202510
Bradley Manor (Sp)*25 Jul 199612 May 20235

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

1996–2025

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

Fish measured by surveyors

Measured length distribution

See how the 105 measured fish were spread across different length ranges.

Smallest
2.2 cm
Lower quarter
5 cm
Median
5.6 cm
Upper quarter
5.9 cm
Largest
7.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Lemon

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

Brown / sea trout European eel Atlantic salmon

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 →