Bullhead · Cottus gobio

Bullhead in the River Ver

Largest measured bullhead: 12.3 cm

The largest bullhead measured in Environment Agency surveys of the River Ver was 12.3 cm, recorded at Shafford Mill on 6 May 2004.

Across 65 measured bullhead, the median measured length was 6.1 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 Ver.

See bullhead records across England →

Most recent observation11 November 2016Moor Mill

Largest measured bullhead: 12.3 cm
Median length: 6.1 cm
Fish measured: 65
Survey locations: 9

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
12.3 cm	6 May 2004	Shafford Mill	81248
8.4 cm	20 May 2004	Verulam Golf Course	81238
8.2 cm	6 May 2004	Shafford Mill	81248
8.2 cm	6 May 2004	Shafford Mill	81248
8.2 cm	6 May 2004	Shafford Mill	81248
8 cm	20 May 2004	Verulam Golf Course	81238
7.8 cm	6 May 2004	Shafford Mill	81248
7.6 cm	20 May 2004	Verulam Golf Course	81238
7.4 cm	6 May 2004	Shafford Mill	81248
7 cm	6 May 2004	Shafford Mill	81248

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
Moor Mill	20 Oct 2009	11 Nov 2016	2
Shafford Mill	6 May 2004	26 Oct 2016	3
Verulam Golf Course	12 Oct 1995	20 Oct 2016	5
Gorehambury Mill	15 Apr 2014	15 Apr 2014	1
Redbourne	16 Oct 2013	16 Oct 2013	1
Downstream Sopwell mill	13 Jul 2006	13 Jul 2006	1
Redbournbury fishery	9 Jun 2006	9 Jun 2006	1
Shafford mill u/s	8 Jun 2006	8 Jun 2006	1
Drop lane (ver)	7 Jun 2006	7 Jun 2006	1

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

1995–2016

Survey records by year

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

195

196

097

098

099

000

001

002

003

204

005

406

007

008

109

010

011

012

313

114

015

316

Fish measured by surveyors

Measured length distribution

See how the 65 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 5.4 cm
Median: 6.1 cm
Upper quarter: 6.5 cm
Largest: 12.3 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ver

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

3-spined stickleback Minnow Brown / sea trout Chub Roach Gudgeon

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 →