RiverFish

Bullhead · Cottus gobio

Bullhead in the Thornton Beck

Largest measured bullhead: 10 cm

The largest bullhead measured in Environment Agency surveys of the Thornton Beck was 10 cm, recorded at Thornton Beck - Shaws Mill on 8 September 2015.

Across 20 measured bullhead, the median measured length was 8.2 cm.

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

See bullhead records across England →

Most recent observation8 September 2015Thornton Beck at Scarah Mills · 2 fish
Largest measured bullhead
10 cm
Median length
8.2 cm
Fish measured
20
Survey locations
4

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
10 cm8 Sept 2015Thornton Beck - Shaws Mill146304
9.5 cm8 Sept 2015Thornton Beck - Shaws Mill146304
9.4 cm8 Sept 2015Thornton Beck - Shaws Mill146304
9.1 cm8 Sept 2015Thornton Beck - Shaws Mill146304
8.9 cm8 Sept 2015Thornton Beck - Shaws Mill146304
8.7 cm8 Sept 2015Thornton Beck - Shaws Mill146304
8.4 cm8 Sept 2015Thornton Beck - Shaws Mill146304
8.4 cm8 Sept 2015Thornton Beck - Shaws Mill146304
8.3 cm8 Sept 2015Thornton Beck - Shaws Mill146304
8.3 cm8 Sept 2015Thornton Beck - Shaws Mill146304

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
Thornton Beck at Scarah Mills22 Jul 20138 Sept 20152
Thornton Beck - Shaws Mill8 Jun 20058 Sept 20153
Thornton Beck u/s Scarah Mills8 Jun 20058 Jun 20051
Thornton Beck - d/s Ripley castle lake8 Jun 20058 Jun 20051

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

2005–2015

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 20 measured fish were spread across different length ranges.

Smallest
3.9 cm
Lower quarter
6.8 cm
Median
8.3 cm
Upper quarter
8.8 cm
Largest
10 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Thornton Beck

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

Brown / sea trout Stone loach

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 →