Bullhead · Cottus gobio

Bullhead in the Mill River

Largest measured bullhead: 8.1 cm

The largest bullhead measured in Environment Agency surveys of the Mill River was 8.1 cm, recorded at Brook Bridge on 22 June 2012.

Across 26 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 Mill River.

See bullhead records across England →

Most recent observation17 April 2013Wendy Road Bridge · 8 fish

Largest measured bullhead: 8.1 cm
Median length: 6.5 cm
Fish measured: 26
Survey locations: 3

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
8.1 cm	22 Jun 2012	Brook Bridge	131593
7.9 cm	17 Apr 2013	Wendy Road Bridge	135848
7.7 cm	17 Apr 2013	Wendy Road Bridge	135848
7.3 cm	7 Oct 1993	Wendy Road Bridge	29421
7.3 cm	7 Oct 1993	Wendy Road Bridge	29421
7.2 cm	17 Apr 2013	Wendy Road Bridge	135848
6.8 cm	17 Apr 2013	Wendy Road Bridge	135848
6.8 cm	22 Jun 2012	Wendy Road Bridge	131595
6.8 cm	29 Jan 1997	Wendy Road Bridge	29428
6.8 cm	7 Oct 1993	Wendy Road Bridge	29421

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
Wendy Road Bridge	20 Feb 1990	17 Apr 2013	6
Brook Bridge	22 Jun 2012	22 Jun 2012	1
Boy Bridge	22 Jun 2012	22 Jun 2012	1

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

1990–2013

Survey records by year

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

190

191

092

193

094

095

096

197

098

099

000

001

002

003

004

005

006

007

008

009

010

011

312

113

Fish measured by surveyors

Measured length distribution

See how the 26 measured fish were spread across different length ranges.

Smallest: 3.3 cm
Lower quarter: 4.9 cm
Median: 6.6 cm
Upper quarter: 6.8 cm
Largest: 8.1 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Mill River

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

3-spined stickleback Gudgeon Stone loach

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 →