RiverFish

Bullhead · Cottus gobio

Bullhead in the Forton Stream

Largest measured bullhead: 8.2 cm

The largest bullhead measured in Environment Agency surveys of the Forton Stream was 8.2 cm, recorded at Upstream Forton Bridge (Sp) on 16 June 2021.

Across 100 measured bullhead, the median measured length was 5.2 cm.

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

See bullhead records across England →

Most recent observation16 June 2021Upstream Forton Bridge (Sp) · 66 fish
Largest measured bullhead
8.2 cm
Median length
5.2 cm
Fish measured
100
Survey locations
1

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
8.2 cm16 Jun 2021Upstream Forton Bridge (Sp)159919
8.2 cm16 Jun 2016Upstream Forton Bridge (Sp)148237
8.1 cm16 Jun 2021Upstream Forton Bridge (Sp)159919
7.6 cm16 Jun 2021Upstream Forton Bridge (Sp)159919
7.5 cm16 Jun 2016Upstream Forton Bridge (Sp)148237
7.4 cm16 Jun 2016Upstream Forton Bridge (Sp)148237
7.3 cm16 Jun 2021Upstream Forton Bridge (Sp)159919
7.2 cm16 Jun 2021Upstream Forton Bridge (Sp)159919
6.9 cm16 Jun 2021Upstream Forton Bridge (Sp)159919
6.9 cm16 Jun 2016Upstream Forton Bridge (Sp)148237

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
Upstream Forton Bridge (Sp)28 Jul 199716 Jun 20216

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

1997–2021

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 100 measured fish were spread across different length ranges.

Smallest
3.9 cm
Lower quarter
4.8 cm
Median
5.3 cm
Upper quarter
6 cm
Largest
8.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 →