RiverFish

Bullhead · Cottus gobio

Bullhead in the River Wey South

Largest measured bullhead: 10.5 cm

The largest bullhead measured in Environment Agency surveys of the River Wey South was 10.5 cm, recorded at Hatch Farm on 23 October 2024.

Across 24 measured bullhead, the median measured length was 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 River Wey South.

See bullhead records across England →

Most recent observation23 October 2024Hatch Farm · 11 fish
Largest measured bullhead
10.5 cm
Median length
7 cm
Fish measured
24
Survey locations
7

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
10.5 cm23 Oct 2024Hatch Farm168011
9.1 cm28 Jun 2023Dockenfield162616
9 cm28 Jun 2023Dockenfield162616
9 cm28 Jun 2023Dockenfield162616
8.7 cm28 Jun 2023Dockenfield162616
8.5 cm28 Jun 2023Dockenfield162616
8 cm28 Jun 2023Dockenfield162616
7.6 cm23 Oct 2024Hatch Farm168011
7.5 cm23 Oct 2024Hatch Farm168011
7.1 cm28 Jun 2023Dockenfield162616

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
Hatch Farm20 Nov 200323 Oct 20245
Dockenfield22 May 200328 Jun 202310
Liphook18 Nov 200320 Nov 20143
Mellow Farm17 Jun 201417 Jun 20141
Headley Wood Farm13 Jun 200220 Sept 20053
Lower Headley Wood Farm10 Dec 20026 Apr 20042
Radford Park31 Oct 200231 Oct 20021

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

2002–2024

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 24 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
6.2 cm
Median
7 cm
Upper quarter
8.1 cm
Largest
10.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wey South

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

Brown / sea trout Stone loach European eel Rainbow trout Dace Chub

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 →