Bullhead · Cottus gobio

Bullhead in the Wallop Brook

Largest measured bullhead: 8.2 cm

The largest bullhead measured in Environment Agency surveys of the Wallop Brook was 8.2 cm, recorded at Roake Farm on 10 May 2011.

Across 30 measured bullhead, the median measured length was 5.5 cm.

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

See bullhead records across England →

Most recent observation10 May 2011Wallop House · 22 fish

Largest measured bullhead: 8.2 cm
Median length: 5.5 cm
Fish measured: 30
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
8.2 cm	10 May 2011	Roake Farm	126166
7.4 cm	10 May 2011	Wallop House	126281
7 cm	10 May 2011	Wallop House	126281
6.7 cm	10 May 2011	Wallop House	126281
6.6 cm	10 May 2011	Wallop House	126281
6.5 cm	10 May 2011	Wallop House	126281
6.4 cm	10 May 2011	Wallop House	126281
6.4 cm	10 May 2011	Wallop House	126281
6.3 cm	10 May 2011	Wallop House	126281
6.2 cm	10 May 2011	Wallop House	126281

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
Wallop House	10 May 2011	10 May 2011	1
Roake Farm	29 Jun 2004	10 May 2011	2
Manor Farm	29 Jun 2004	29 Jun 2004	1
Goddards Farm	29 Jun 2004	29 Jun 2004	1

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

2004–2011

Survey records by year

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

304

005

006

007

008

009

010

211

Fish measured by surveyors

Measured length distribution

See how the 30 measured fish were spread across different length ranges.

Smallest: 3.4 cm
Lower quarter: 4.8 cm
Median: 5.5 cm
Upper quarter: 6.4 cm
Largest: 8.2 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Wallop Brook

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

Brown / sea 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 →