RiverFish

Bullhead · Cottus gobio

Bullhead in the Scotley Brook

Largest measured bullhead: 6.8 cm

The largest bullhead measured in Environment Agency surveys of the Scotley Brook was 6.8 cm, recorded at Clifford Field (SP) on 19 July 2019.

Across 7 measured bullhead, the median measured length was 5.5 cm.

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

See bullhead records across England →

Most recent observation18 July 2025Clifford Field (SP) · 2 fish
Largest measured bullhead
6.8 cm
Median length
5.5 cm
Fish measured
7
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
6.8 cm19 Jul 2019Clifford Field (SP)154858
5.7 cm30 Jul 2007Clifford Field (SP)108551
5.6 cm30 Jul 2007Clifford Field (SP)108551
5.5 cm30 Jul 2007Clifford Field (SP)108551
5.5 cm30 Jul 2007Clifford Field (SP)108551
5.2 cm30 Jul 2007Clifford Field (SP)108551
5.1 cm30 Jul 2007Clifford Field (SP)108551

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
Clifford Field (SP)30 Jul 200718 Jul 20255
Wood Brooke SP*12 Sept 199613 Jun 20022

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 7 measured fish were spread across different length ranges.

Smallest
5.1 cm
Lower quarter
5.4 cm
Median
5.5 cm
Upper quarter
5.7 cm
Largest
6.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Scotley Brook

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

Brown / sea trout Stone loach Atlantic salmon 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 →