Bullhead · Cottus gobio

Bullhead in the River Cheddar Yeo

Largest measured bullhead: 7 cm

The largest bullhead measured in Environment Agency surveys of the River Cheddar Yeo was 7 cm, recorded at Cheddar on 16 August 1991.

Across 99 measured bullhead, the median measured length was 5.5 cm.

Surveyors recorded weights for 38 bullhead. The median was 0.1 oz (0.002 kg) and the largest recorded weight was 0.1 oz (0.004 kg).

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

See bullhead records across England →

Most recent observation20 August 2014Bow Bridge at Cross (Te)

Largest measured bullhead: 7 cm
Median length: 5.5 cm
Fish measured: 99
Survey locations: 3

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
7 cm	16 Aug 1991	Cheddar	80199
6.8 cm	16 Aug 1991	Cheddar	80199
6.7 cm	16 Aug 1991	Cheddar	80199
6.7 cm	16 Aug 1991	Cheddar	80199
6.7 cm	16 Aug 1991	Cheddar	80199
6.6 cm	16 Aug 1991	Cheddar	80199
6.5 cm	16 Aug 1991	Cheddar	80199
6.5 cm	16 Aug 1991	Cheddar	80199
6.5 cm	16 Aug 1991	Cheddar	80199
6.5 cm	16 Aug 1991	Cheddar	80199

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
Bow Bridge at Cross (Te)	28 May 2003	20 Aug 2014	5
Hythe (Te)	28 May 2003	2 Aug 2005	3
Cheddar	16 Aug 1991	16 Aug 1991	1

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

1991–2014

Survey records by year

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

191

092

093

094

095

096

097

098

099

000

001

002

203

104

205

006

007

008

009

010

111

112

013

114

Fish measured by surveyors

Measured length distribution

See how the 99 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 4.8 cm
Median: 5.5 cm
Upper quarter: 6 cm
Largest: 7 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 38 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.002 kg)
Median: 0.1 oz (0.002 kg)
Upper quarter: 0.1 oz (0.003 kg)
Heaviest: 0.1 oz (0.004 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Cheddar Yeo

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

European eel Roach Pike Stone loach 3-spined stickleback Perch

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 →