Bullhead · Cottus gobio

Bullhead in the River Alham

Largest measured bullhead: 10.1 cm

The largest bullhead measured in Environment Agency surveys of the River Alham was 10.1 cm, recorded at Bailey's Lane on 22 August 1990.

Across 97 measured bullhead, the median measured length was 6.3 cm.

Surveyors recorded weights for 76 bullhead. The median was 0.2 oz (0.0045 kg) and the largest recorded weight was 0.6 oz (0.018 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 Alham.

See bullhead records across England →

Most recent observation8 August 2012Milton Bridge, Evercreech (Se-04) · 21 fish

Largest measured bullhead: 10.1 cm
Median length: 6.3 cm
Fish measured: 97
Survey locations: 4

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
10.1 cm	22 Aug 1990	Bailey's Lane	82639
10 cm	22 Aug 1990	Bailey's Lane	82639
9.9 cm	22 Aug 1990	Bailey's Lane	82639
9.7 cm	22 Aug 1990	Bailey's Lane	82639
9.7 cm	22 Aug 1990	Bailey's Lane	82639
9.7 cm	22 Aug 1990	Bailey's Lane	82639
9.3 cm	22 Aug 1990	Bailey's Lane	82639
9.3 cm	22 Aug 1990	Bailey's Lane	82639
9.2 cm	22 Aug 1990	Bailey's Lane	82639
9.2 cm	8 Aug 1990	Milton Bridge, Evercreech (Se-04)	82640

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
Milton Bridge, Evercreech (Se-04)	8 Aug 1990	8 Aug 2012	3
Batcombe	13 Oct 2000	13 Oct 2000	1
Bailey's Lane	22 Aug 1990	22 Aug 1990	1
Redlands Farm	16 Aug 1990	16 Aug 1990	1

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

1990–2012

Survey records by year

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

390

091

092

093

094

095

096

097

098

099

100

001

002

003

104

005

006

007

008

009

010

011

112

Fish measured by surveyors

Measured length distribution

See how the 97 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 3.8 cm
Median: 6.3 cm
Upper quarter: 7.9 cm
Largest: 10.1 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 76 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 oz (0.001 kg)
Median: 0.2 oz (0.0045 kg)
Upper quarter: 0.3 oz (0.009 kg)
Heaviest: 0.6 oz (0.018 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 Alham

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

Brown / sea trout 3-spined stickleback 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 →