RiverFish

Bullhead · Cottus gobio

Bullhead in the Swannington Beck

Largest measured bullhead: 10.7 cm

The largest bullhead measured in Environment Agency surveys of the Swannington Beck was 10.7 cm, recorded at Alderford Common on 17 April 2013.

Across 552 measured bullhead, the median measured length was 5.4 cm.

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

See bullhead records across England →

Most recent observation27 March 2015Swannington Bridge , Swannington · 43 fish
Largest measured bullhead
10.7 cm
Median length
5.4 cm
Fish measured
552
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
10.7 cm17 Apr 2013Alderford Common135880
10.4 cm18 Dec 2003Haveringland , School Road bridge99987
10.3 cm4 Mar 2014Swannington Bridge , Swannington140527
10 cm17 Apr 2013Alderford Common135880
9.7 cm19 Dec 2003Hengrave Bridge , Swannington99985
9.5 cm27 Mar 2015Swannington Bridge , Swannington144635
9.5 cm17 Apr 2013Alderford Common135880
9.4 cm24 Mar 2015Hengrave Bridge , Swannington144531
9.3 cm4 Feb 2009Felthorpe , Mill Lane Bridge116887
9.2 cm4 Mar 2014Swannington Bridge , Swannington140527

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
Swannington Bridge , Swannington16 Dec 200327 Mar 20154
Hengrave Bridge , Swannington19 Dec 200324 Mar 20153
Felthorpe , Mill Lane Bridge17 Dec 200324 Mar 20153
Alderford Common17 Dec 200317 Apr 20133
Haveringland , School Road bridge18 Dec 20039 Feb 20092

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

2003–2015

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 552 measured fish were spread across different length ranges.

Smallest
3 cm
Lower quarter
4.6 cm
Median
5.4 cm
Upper quarter
6.4 cm
Largest
10.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Swannington Beck

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

3-spined stickleback 10-spined stickleback Brown / sea trout Minnow Chub 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 →