RiverFish

Bullhead · Cottus gobio

Bullhead in the River Bilney watercourse

Largest measured bullhead: 9 cm

The largest bullhead measured in Environment Agency surveys of the River Bilney watercourse was 9 cm, recorded at East Bilney , Folly Lane Ford on 21 February 2006.

Across 279 measured bullhead, the median measured length was 5.7 cm.

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

See bullhead records across England →

Most recent observation20 October 2020Foxburrow Farm, US bridge · 1 fish
Largest measured bullhead
9 cm
Median length
5.7 cm
Fish measured
279
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
9 cm21 Feb 2006East Bilney , Folly Lane Ford100191
8.9 cm21 Feb 2006East Bilney , Whin Covert100189
8.7 cm26 Apr 2013Beetley , Beetley Common135926
8.7 cm26 Apr 2013Beetley , Beetley Common135926
8.7 cm21 Feb 2006East Bilney , Folly Lane Ford100191
8.5 cm26 Apr 2013Beetley , Beetley Common135926
8.4 cm26 Apr 2013Beetley , Beetley Common135926
8.4 cm6 Mar 2006Beetley , Beetley Common100197
8.3 cm26 Apr 2013Beetley , Beetley Common135926
8.3 cm26 Apr 2013Beetley , Beetley Common135926

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
Foxburrow Farm, US bridge10 Oct 201720 Oct 20202
Beetley , Beetley Common6 Mar 200626 Apr 20133
East Bilney , Bilney Common27 Feb 200627 Feb 20061
East Bilney , Whin Covert21 Feb 200621 Feb 20061
East Bilney , Folly Lane Ford21 Feb 200621 Feb 20061

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

2006–2020

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 279 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
4.1 cm
Median
5.7 cm
Upper quarter
6.7 cm
Largest
9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Bilney watercourse

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

Brown / sea trout 3-spined stickleback 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 →