RiverFish

Bullhead · Cottus gobio

Bullhead in the Oak Beck

Largest measured bullhead: 11.5 cm

The largest bullhead measured in Environment Agency surveys of the Oak Beck was 11.5 cm, recorded at Oak Beck - Knox Mill on 22 August 2013.

Across 36 measured bullhead, the median measured length was 8.8 cm.

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

See bullhead records across England →

Most recent observation5 September 2024Oak Beck - Throstle Nest Farm
Largest measured bullhead
11.5 cm
Median length
8.8 cm
Fish measured
36
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
11.5 cm22 Aug 2013Oak Beck - Knox Mill138503
10.9 cm22 Aug 2013Oak Beck - Knox Mill138503
10.7 cm22 Aug 2013Oak Beck - Knox Mill138503
10.5 cm22 Aug 2013Oak Beck - Knox Mill138503
10.4 cm22 Aug 2013Oak Beck - Knox Mill138503
10.3 cm22 Aug 2013Oak Beck - Knox Mill138503
10.2 cm22 Aug 2013Oak Beck - Knox Mill138503
10.1 cm22 Aug 2013Oak Beck - Knox Mill138503
10 cm22 Aug 2013Oak Beck - Knox Mill138503
10 cm22 Aug 2013Oak Beck - Knox Mill138503

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
Oak Beck - Throstle Nest Farm8 Jun 20055 Sept 20243
Oak Beck - Knox Mill8 Jun 20055 Sept 20244

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

2005–2024

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 36 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
7.4 cm
Median
8.8 cm
Upper quarter
10 cm
Largest
11.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Oak Beck

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

Brown / sea trout Minnow

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 →