Bullhead · Cottus gobio

Bullhead in the River Eyebrook

Largest measured bullhead: 9.5 cm

The largest bullhead measured in Environment Agency surveys of the River Eyebrook was 9.5 cm, recorded at Stockerston Road Bridge on 20 May 2004.

Across 22 measured bullhead, the median measured length was 7.4 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 Eyebrook.

See bullhead records across England →

Most recent observation8 April 2026Stockerston Road Bridge · 1 fish

Largest measured bullhead: 9.5 cm
Median length: 7.4 cm
Fish measured: 22
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.

Length	Survey date	Survey location	Survey ID
9.5 cm	20 May 2004	Stockerston Road Bridge	82538
8.5 cm	20 May 2004	Stockerston Road Bridge	82538
8 cm	20 May 2004	Stockerston Road Bridge	82538
8 cm	18 Mar 1993	Stockerston Road Bridge	54554
7.8 cm	2 Apr 2026	Downstream Eyebrook Reservoir	180851
7.8 cm	2 Apr 2026	Downstream Eyebrook Reservoir	180851
7.5 cm	20 May 2004	Stockerston Road Bridge	82538
7.5 cm	20 May 2004	Stockerston Road Bridge	82538
7.5 cm	20 May 2004	Stockerston Road Bridge	82538
7.5 cm	20 May 2004	Stockerston Road Bridge	82538

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
Stockerston Road Bridge	18 Mar 1993	8 Apr 2026	7
Downstream Eyebrook Reservoir	18 May 2000	2 Apr 2026	10
Allexton Road Bridge	26 Mar 1993	8 Jun 2023	5
Skeffington Wood 1	15 Sept 2010	22 Sept 2014	2
Loddington Mill Downstream	12 Nov 2009	2 Apr 2014	3
Tugby Wood R/B Downstream	18 Sept 2010	20 Mar 2014	3
East Norton Downstream R/B	20 Sept 2010	20 Mar 2014	3
Skeffington Wood 2 (Glebe Farm)	15 Jun 2011	18 Mar 2014	2
Downstream Allexton Rd. Br.	27 Sept 2010	18 Mar 2014	2
Downstream Caldecott Road Bridge	19 May 2000	19 May 2000	1

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

1993–2026

Survey records by year

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

293

094

095

096

097

098

099

300

001

002

003

204

005

006

007

008

109

710

511

112

213

714

015

116

117

118

019

020

021

122

223

024

025

226

Fish measured by surveyors

Measured length distribution

See how the 22 measured fish were spread across different length ranges.

Smallest: 5 cm
Lower quarter: 6.1 cm
Median: 7.4 cm
Upper quarter: 7.7 cm
Largest: 9.5 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Eyebrook

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

Brown / sea trout Minnow Stone loach Dace Roach Chub

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 →