RiverFish

Bullhead · Cottus gobio

Bullhead in the River Enborne

Largest measured bullhead: 7.2 cm

The largest bullhead measured in Environment Agency surveys of the River Enborne was 7.2 cm, recorded at Borne Farm on 18 May 2007.

Across 103 measured bullhead, the median measured length was 4.6 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 Enborne.

See bullhead records across England →

Most recent observation8 May 2025Wasing Lower Farm
Largest measured bullhead
7.2 cm
Median length
4.6 cm
Fish measured
103
Survey locations
5

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
7.2 cm18 May 2007Borne Farm105349
6.6 cm18 May 2007Borne Farm105349
6.5 cm18 May 2007Borne Farm105349
6.5 cm18 May 2007Borne Farm105349
6.4 cm18 May 2007Borne Farm105349
6.4 cm18 May 2007Borne Farm105349
6.1 cm29 Oct 2009Bishop's Green120548
6 cm29 Oct 2009Bishop's Green120548
5.9 cm29 Oct 2009Bishop's Green120548
5.9 cm18 May 2007Borne Farm105349

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
Wasing Lower Farm5 Apr 20058 May 20255
Borne Farm18 May 20073 May 20132
Folly Farm5 Apr 20051 May 20132
Bishop's Green6 Apr 200522 Sept 20104
Hyde End Farm6 Apr 20056 Apr 20051

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

2005–2025

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 103 measured fish were spread across different length ranges.

Smallest
2.5 cm
Lower quarter
4.1 cm
Median
4.6 cm
Upper quarter
5.3 cm
Largest
7.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Enborne

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

Brown / sea trout Minnow Chub Stone loach Dace Gudgeon

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 →