RiverFish

Bullhead · Cottus gobio

Bullhead in the Denholme beck

Largest measured bullhead: 10.7 cm

The largest bullhead measured in Environment Agency surveys of the Denholme beck was 10.7 cm, recorded at d/s Doe Park Res on 12 August 2009.

Across 104 measured bullhead, the median measured length was 6.7 cm.

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

See bullhead records across England →

Most recent observation2 October 2023d/s Doe Park Res
Largest measured bullhead
10.7 cm
Median length
6.7 cm
Fish measured
104
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
10.7 cm12 Aug 2009d/s Doe Park Res118718
10.6 cm18 Sept 2007d/s Doe Park Res108389
10.2 cm12 Aug 2009d/s Doe Park Res118718
9.9 cm12 Aug 2009d/s Doe Park Res118718
9.8 cm12 Aug 2009d/s Doe Park Res118718
9.8 cm12 Aug 2009d/s Doe Park Res118718
9.7 cm12 Aug 2009d/s Doe Park Res118718
9.5 cm4 Sept 2014d/s Doe Park Res142745
9.4 cm12 Aug 2009d/s Doe Park Res118718
9.3 cm12 Aug 2009d/s Doe Park Res118718

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
d/s Doe Park Res18 Sept 20072 Oct 20235
Meal Bridge Farm to Reservoir24 Sept 201724 Sept 20171

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

2007–2023

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 104 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
5.5 cm
Median
6.7 cm
Upper quarter
7.8 cm
Largest
10.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 →