RiverFish

Bullhead · Cottus gobio

Bullhead in the Slad Brook

Largest measured bullhead: 11.2 cm

The largest bullhead measured in Environment Agency surveys of the Slad Brook was 11.2 cm, recorded at Steanbridge Mill on 23 June 1997.

Across 91 measured bullhead, the median measured length was 6.5 cm.

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

See bullhead records across England →

Most recent observation23 August 2023Steanbridge Mill
Largest measured bullhead
11.2 cm
Median length
6.5 cm
Fish measured
91
Survey locations
10

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
11.2 cm23 Jun 1997Steanbridge Mill55672
11 cm16 Mar 1992Stroud55678
10 cm16 Mar 1992Stroud55678
8.5 cm11 May 2010Merrywalks, Stroud121596
8.4 cm11 May 2010Merrywalks, Stroud121596
8.3 cm11 May 2010Merrywalks, Stroud121596
8.2 cm16 Mar 1992Stroud55678
8.1 cm11 May 2010Merrywalks, Stroud121596
8 cm16 Mar 1992Steanbridge Mill55675
7.8 cm11 May 2010Merrywalks, Stroud121596

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
Streamside Close, Stroud8 Aug 200723 Aug 20235
Steanbridge Mill16 Mar 199223 Aug 20238
Painswick Slad Farm13 May 201013 May 20101
The Vatch House12 May 201012 May 20101
Spring Cottages12 May 201012 May 20101
New Mills Trading Estate12 May 201012 May 20101
Stone Masons, Slad Road11 May 201011 May 20101
Merrywalks, Stroud11 May 201011 May 20101
McDonalds, Stroud11 May 201011 May 20101
Stroud16 Mar 199216 Mar 19921

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

1992–2023

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 91 measured fish were spread across different length ranges.

Smallest
3 cm
Lower quarter
5.2 cm
Median
6.5 cm
Upper quarter
7.3 cm
Largest
11.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Slad Brook

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

Brown / sea trout European eel Brook lamprey

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 →