RiverFish

Bullhead · Cottus gobio

Bullhead in the River DS Cam

Largest measured bullhead: 10.3 cm

The largest bullhead measured in Environment Agency surveys of the River DS Cam was 10.3 cm, recorded at Midsummer Common on 12 January 1989.

Across 20 measured bullhead, the median measured length was 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 DS Cam.

See bullhead records across England →

Most recent observation30 September 2025Fen Ditton · 1 fish
Largest measured bullhead
10.3 cm
Median length
6 cm
Fish measured
20
Survey locations
7

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
10.3 cm12 Jan 1989Midsummer Common29345
9.3 cm12 Jan 1989Midsummer Common29345
8.8 cm12 Jan 1989Midsummer Common29345
8.3 cm12 Jan 1989Midsummer Common29345
8.3 cm12 Jan 1989Midsummer Common29345
8.3 cm16 Jan 1988Fen Ditton29347
7.3 cm13 Jan 1989Stourbridge Common29346
6.4 cm30 Sept 2025Fen Ditton179033
6.1 cm25 Sept 2025Midsummer Common178899
6 cm25 Sept 2025Midsummer Common178899

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
Fen Ditton16 Jan 198830 Sept 20256
Midsummer Common12 Jan 198925 Sept 20254
Hatleys Wash1 Aug 20111 Aug 20111
Dimmocks Cote11 Aug 201011 Aug 20101
Baits Bite Lock3 Sept 20093 Sept 20091
Ducketts Farm Upware2 Jan 19912 Jan 19911
Stourbridge Common13 Jan 198913 Jan 19891

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

1988–2025

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 20 measured fish were spread across different length ranges.

Smallest
4 cm
Lower quarter
4.8 cm
Median
6 cm
Upper quarter
8.3 cm
Largest
10.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River DS Cam

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

Perch Pike Common bream Ruffe Roach Dace

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 →