Bullhead · Cottus gobio

Bullhead in the Black Brook

Largest measured bullhead: 9.4 cm

The largest bullhead measured in Environment Agency surveys of the Black Brook was 9.4 cm, recorded at Freudenberg on 13 August 2015.

Across 868 measured bullhead, the median measured length was 5.8 cm.

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

See bullhead records across England →

Most recent observation27 August 2024u/s Holywell Brook confluence

Largest measured bullhead: 9.4 cm
Median length: 5.8 cm
Fish measured: 868
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.

Length	Survey date	Survey location	Survey ID
9.4 cm	13 Aug 2015	Freudenberg	145878
9.3 cm	12 Aug 2015	Gate Head Lane	145859
9.3 cm	12 Aug 2015	Gate Head Lane	145859
9.3 cm	22 Sept 2009	Gate Head Lane	119905
9.2 cm	25 Sept 2017	Freudenberg	151765
9.1 cm	12 Aug 2015	Gate Head Lane	145859
9 cm	13 Aug 2015	Freudenberg	145878
9 cm	13 Aug 2015	Freudenberg	145878
8.9 cm	13 Sept 2021	Freudenberg	160262
8.8 cm	15 Oct 2021	Gate Head Lane	160466

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
u/s Holywell Brook confluence	27 Aug 2024	27 Aug 2024	1
d/s Holywell Brook Confluence	27 Aug 2024	27 Aug 2024	1
Freudenberg	9 Sept 1999	7 Sept 2023	17
Gate Head Lane	9 Sept 1999	15 Oct 2021	6
Barkisland	9 Sept 1999	9 Sept 1999	1

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

1999–2024

Survey records by year

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

399

000

001

102

203

104

105

006

107

208

209

110

111

112

113

014

215

016

117

018

119

020

221

022

123

224

Fish measured by surveyors

Measured length distribution

See how the 868 measured fish were spread across different length ranges.

Smallest: 1.8 cm
Lower quarter: 4.7 cm
Median: 5.8 cm
Upper quarter: 6.8 cm
Largest: 9.4 cm

0–99 mm

868

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Black Brook

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

Brown / sea trout 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 →