Bullhead · Cottus gobio

Bullhead in the Old West River

Largest measured bullhead: 6.9 cm

The largest bullhead measured in Environment Agency surveys of the Old West River was 6.9 cm, recorded at Smithy Fen Farm on 13 September 2017.

Across 6 measured bullhead, the median measured length was 5.7 cm.

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

See bullhead records across England →

Most recent observation14 September 2017Stretham Old Engine · 1 fish

Largest measured bullhead: 6.9 cm
Median length: 5.7 cm
Fish measured: 6
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
6.9 cm	13 Sept 2017	Smithy Fen Farm	151646
6.4 cm	13 Sept 2017	Smithy Fen Farm	151646
6.1 cm	16 Sept 2009	Hermitage Marina	118927
5.3 cm	13 Sept 2017	Smithy Fen Farm	151646
4.8 cm	14 Sept 2017	Stretham Old Engine	151647
4.2 cm	28 Jul 2014	Stretham Old Engine	141948

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
Stretham Old Engine	28 Jul 2014	14 Sept 2017	2
Smithy Fen Farm	13 Sept 2017	13 Sept 2017	1
Flat Bridge Farm	17 Sept 2009	17 Sept 2009	1
Hermitage Marina	16 Sept 2009	16 Sept 2009	1

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

2009–2017

Survey records by year

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

209

010

011

012

013

114

015

016

217

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 4.2 cm
Lower quarter: 4.9 cm
Median: 5.7 cm
Upper quarter: 6.3 cm
Largest: 6.9 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Old West River

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

Perch Roach Pike Bitterling Tench Bleak

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 →