Bullhead · Cottus gobio

Bullhead in the River Dene

Largest measured bullhead: 10.8 cm

The largest bullhead measured in Environment Agency surveys of the River Dene was 10.8 cm, recorded at Upstream Wellesbourne roadbridge (A429) on 19 April 2002.

Across 128 measured bullhead, the median measured length was 5.5 cm.

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

See bullhead records across England →

Most recent observation6 June 2019Fosse Road Bridge

Largest measured bullhead: 10.8 cm
Median length: 5.5 cm
Fish measured: 128
Survey locations: 5

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
10.8 cm	19 Apr 2002	Upstream Wellesbourne roadbridge (A429)	25896
10.2 cm	19 Apr 2002	Upstream Wellesbourne roadbridge (A429)	25896
9.3 cm	16 Apr 2002	Fosse Road Bridge	25876
8.9 cm	19 Apr 2002	Upstream Wellesbourne roadbridge (A429)	25896
8.8 cm	27 Aug 1997	Fosse Road Bridge	72712
8.2 cm	16 Apr 2002	Fosse Road Bridge	25876
7.9 cm	16 Apr 2002	Fosse Road Bridge	25876
7.9 cm	25 Feb 1992	Fosse Road Bridge	72708
7.8 cm	16 Apr 2002	Fosse Road Bridge	25876
7.8 cm	25 Feb 1992	Fosse Road Bridge	72708

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
Fosse Road Bridge	25 Feb 1992	6 Jun 2019	5
Upstream Wellesbourne roadbridge (A429)	27 Aug 1997	19 Apr 2002	2
Downstream Wellesbourne	4 Aug 1981	19 Apr 2002	3
Banbury Road, Kineton	25 Feb 1992	27 Aug 1997	2
d/s Walton Hall Lake	5 Aug 1981	5 Aug 1981	1

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

1981–2019

Survey records by year

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

281

082

083

084

085

086

087

088

089

090

091

292

093

094

095

096

497

098

099

000

001

302

003

004

005

006

007

008

009

010

011

012

113

014

015

016

017

018

119

Fish measured by surveyors

Measured length distribution

See how the 128 measured fish were spread across different length ranges.

Smallest: 2.7 cm
Lower quarter: 4.7 cm
Median: 5.5 cm
Upper quarter: 6.5 cm
Largest: 10.8 cm

0–99 mm

126

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Dene

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

Minnow Roach European eel Pike Chub 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 →