Bullhead · Cottus gobio

Bullhead in the Jubilee River

Largest measured bullhead: 8.2 cm

The largest bullhead measured in Environment Agency surveys of the Jubilee River was 8.2 cm, recorded at Taplow on 23 August 2013.

Across 134 measured bullhead, the median measured length was 4.5 cm.

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

See bullhead records across England →

Most recent observation23 August 2013Taplow · 4 fish

Largest measured bullhead: 8.2 cm
Median length: 4.5 cm
Fish measured: 134
Survey locations: 6

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	23 Aug 2013	Taplow	138209
6.9 cm	26 Sept 2002	Taplow	65361
6.6 cm	26 Aug 2009	Eton Far Shore	118860
6.2 cm	23 Aug 2010	Conservation Section No 2 (US)	123606
6.1 cm	25 Aug 2009	Conservation Section No 1 (DS)	118677
6.1 cm	23 Aug 2005	Conservation Section No 1 (DS)	90849
6.1 cm	22 Aug 2005	Taplow	90938
6 cm	23 Aug 2010	Taplow	123604
6 cm	26 Aug 2008	Conservation Section No 1 (DS)	114164
6 cm	3 Sept 2004	Taplow	82714

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
Taplow	26 Sept 2002	23 Aug 2013	10
Eton Far Shore	26 Aug 2009	22 Aug 2013	3
Black Potts	27 Aug 2008	22 Aug 2013	4
Conservation Section No 1 (DS)	23 Aug 2005	21 Aug 2013	7
Upstream of Slough Weir	24 Aug 2010	24 Aug 2010	1
Conservation Section No 2 (US)	17 Aug 2006	23 Aug 2010	3

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

2002–2013

Survey records by year

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

102

103

104

205

306

207

308

509

610

011

012

413

Fish measured by surveyors

Measured length distribution

See how the 134 measured fish were spread across different length ranges.

Smallest: 2.4 cm
Lower quarter: 3.9 cm
Median: 4.5 cm
Upper quarter: 5.1 cm
Largest: 8.2 cm

0–99 mm

134

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Jubilee River

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

3-spined stickleback Gudgeon Perch Stone loach Roach 10-spined stickleback

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 →