RiverFish

Bullhead · Cottus gobio

Bullhead in the River Alne

Largest measured bullhead: 10.2 cm

The largest bullhead measured in Environment Agency surveys of the River Alne was 10.2 cm, recorded at Little Alne on 27 August 2013.

Across 210 measured bullhead, the median measured length was 6.2 cm.

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

See bullhead records across England →

Most recent observation26 June 2025Downstream Great Alne Road Bridge
Largest measured bullhead
10.2 cm
Median length
6.2 cm
Fish measured
210
Survey locations
16

Individual EA measurements

Largest measured bullhead

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

LengthSurvey dateSurvey locationSurvey ID
10.2 cm27 Aug 2013Little Alne138287
10 cm27 Aug 2013Little Alne138287
10 cm27 Aug 2013Wootton Wawen138206
10 cm27 Aug 2013Wootton Wawen138206
10 cm16 Jul 2002Aston Cantlow52149
9.7 cm4 Jul 2013Great Alne Road Bridge137709
9.6 cm27 Aug 2013Wootton Wawen138206
9.5 cm27 Aug 2013Wootton Wawen138206
9.2 cm25 Aug 2016Little Alne149384
9 cm25 Aug 2016Little Alne149384

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 surveyedFirst recordedLast recordedVisits finding bullhead
Downstream Great Alne Road Bridge17 Jul 201326 Jun 20255
Blackford Mill27 Jul 201720 Jul 20232
Alcester Riverside21 Aug 20189 Jul 20192
Upstream Haselor Grounds18 Jul 20183 Jul 20192
Kinwarton15 Jul 199730 Aug 20162
Little Alne15 Jul 199725 Aug 20166
Great Alne Road Bridge13 Jul 200518 Aug 20166
Wootton Wawen16 Jul 200127 Aug 20137
Pennyford Hall10 Oct 19897 Jun 20067
Aston Cantlow16 Jul 200216 Jul 20021
u/s Henley-in-Arden11 Sept 19912 Jul 20023
Lowsonford11 Sept 19912 Jul 20023
Kingswood Brook12 Sept 199118 Jun 19972
Oldberrow Brook, Henley-in-Arden11 Sept 199111 Jun 19972
Claverdon Brook, Bearley11 Sept 199111 Jun 19972
Pennyford Hall, d/s WRW discharge (new site 2a)10 Oct 198910 Oct 19891

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

1989–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 210 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
5.4 cm
Median
6.2 cm
Upper quarter
7.2 cm
Largest
10.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Alne

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

Dace Minnow Roach Stone loach European eel Gudgeon

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 →