RiverFish

Bullhead · Cottus gobio

Bullhead in the River Main Haddeo

Largest measured bullhead: 9.4 cm

The largest bullhead measured in Environment Agency surveys of the River Main Haddeo was 9.4 cm, recorded at Clammer Ford (Te) on 12 August 2019.

Across 350 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 Main Haddeo.

See bullhead records across England →

Most recent observation1 July 2025Gamekeepers (Te) · 94 fish
Largest measured bullhead
9.4 cm
Median length
6.2 cm
Fish measured
350
Survey locations
12

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
9.4 cm12 Aug 2019Clammer Ford (Te)155175
9.3 cm19 Aug 2021Clammer Ford (Te)160546
8.8 cm19 Aug 2021Clammer Ford (Te)160546
8.8 cm19 Aug 2021Clammer Ford (Te)160546
8.7 cm19 Aug 2021Clammer Ford (Te)160546
8.7 cm19 Aug 2021Clammer Ford (Te)160546
8.6 cm27 Jun 2017Clammer Ford (Te)150733
8.4 cm19 Aug 2021Clammer Ford (Te)160546
8.4 cm12 Aug 2019Clammer Ford (Te)155175
8.4 cm27 Jun 2017Clammer Ford (Te)150733

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
Gamekeepers (Te)14 Aug 19971 Jul 202523
Clammer Ford (Te)13 Aug 19971 Jul 202523
Pink Cottage (Sp)14 Aug 199710 Aug 202214
Upstream Bury Bridge (Sp)14 Aug 199713 Jul 20228
Steart Upstream Track Bridge12 Sept 201424 Aug 20152
Hartford (Sp)13 Aug 199730 Jun 20157
Upstream Pink Cottage (Dip)*5 Jul 20055 Jul 20051
Downstream Road Pool (Dip)*5 Jul 20055 Jul 20051
Downstream Pink Cottage (Dip)*5 Jul 20055 Jul 20051
Downstream Bury Ford 1km (Dip)*5 Jul 20055 Jul 20051
Downstream Bury Ford (Dip)*5 Jul 20055 Jul 20051
Steart Downstream Dam (Sp)*5 Aug 19979 Jul 20046

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

1997–2025

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 350 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
4.7 cm
Median
6.2 cm
Upper quarter
7 cm
Largest
9.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Haddeo

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

Brown / sea trout Atlantic salmon Stone loach European eel Minnow Rainbow trout

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 →