Bullhead · Cottus gobio

Bullhead in the Bradshaw Brook

Largest measured bullhead: 10.4 cm

The largest bullhead measured in Environment Agency surveys of the Bradshaw Brook was 10.4 cm, recorded at Br03 on 20 September 2002.

Across 421 measured bullhead, the median measured length was 7.4 cm.

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

See bullhead records across England →

Most recent observation6 September 2010Br02

Largest measured bullhead: 10.4 cm
Median length: 7.4 cm
Fish measured: 421
Survey locations: 6

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
10.4 cm	20 Sept 2002	Br03	61582
10.3 cm	15 Sept 2003	Br01	77040
10.1 cm	15 Sept 2003	Br01	77040
10.1 cm	20 Sept 2002	Br03	61582
10.1 cm	20 Sept 2002	Br03	61582
10 cm	15 Sept 2003	Br01	77040
9.9 cm	15 Sept 2003	Br01	77040
9.9 cm	15 Sept 2003	Br01	77040
9.8 cm	20 Sept 2002	Br03	61582
9.8 cm	20 Sept 2002	Br02	61580

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 surveyed	First recorded	Last recorded	Visits finding bullhead
Br02	22 Sept 1999	6 Sept 2010	22
Br01	21 Sept 1999	6 Sept 2010	23
Br04	23 Sept 1999	5 May 2010	18
Br05	24 Sept 1999	4 May 2010	20
Br03	30 May 2000	28 Sept 2006	12
Crbr05	28 Jun 2002	28 Jun 2002	1

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

1999–2010

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

499

600

1001

1102

1003

804

1005

1006

707

808

609

610

Fish measured by surveyors

Measured length distribution

See how the 421 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 6.3 cm
Median: 7.4 cm
Upper quarter: 8.1 cm
Largest: 10.4 cm

0–99 mm

415

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bradshaw Brook

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

Brown / sea trout Perch 3-spined stickleback Roach Stone loach 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 →