Bullhead · Cottus gobio

Bullhead in the River Main Claw

Largest measured bullhead: 7.8 cm

The largest bullhead measured in Environment Agency surveys of the River Main Claw was 7.8 cm, recorded at Clawton Bridge on 7 June 2016.

Across 264 measured bullhead, the median measured length was 5.1 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 Main Claw.

See bullhead records across England →

Most recent observation9 June 2022Upstream Tetcott Bridge · 39 fish

Largest measured bullhead: 7.8 cm
Median length: 5.1 cm
Fish measured: 264
Survey locations: 11

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
7.8 cm	7 Jun 2016	Clawton Bridge	148161
7.8 cm	3 Jun 2010	Claw Bridge	122439
7.7 cm	7 Jun 2016	Clawton Bridge	148161
7.7 cm	7 Jun 2016	Clawton Bridge	148161
7.6 cm	20 May 2016	Claw Bridge	148057
7.4 cm	7 Jun 2016	Clawton Bridge	148161
7.3 cm	9 Jun 2022	Upstream Tetcott Bridge	161705
7.1 cm	7 Jun 2016	Clawton Bridge	148161
7.1 cm	7 Jun 2016	Clawton Bridge	148161
7.1 cm	3 Jun 2016	Tetcott Bridge	148153

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
Upstream Tetcott Bridge	9 Jun 2022	9 Jun 2022	1
Clawton Bridge	8 Jun 1984	9 Jun 2022	7
Claw Bridge	14 Jun 1984	26 May 2022	7
Tetcott Bridge	13 Jun 1984	3 Jun 2016	5
d/s 2nd Art. Spawn Bed	10 Oct 1994	10 Oct 1994	1
Gunnacott	20 Jun 1984	29 Jun 1993	2
Higher Claw	14 Jun 1984	28 Jun 1993	2
Claw Spawning Bed No. 4	26 Jun 1993	26 Jun 1993	1
Claw Spawning Bed No. 3	26 Jun 1993	26 Jun 1993	1
Claw Spawning Bed No. 2	26 Jun 1993	26 Jun 1993	1
Claw Spawning Bed No. 1	26 Jun 1993	26 Jun 1993	1

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

1984–2022

Survey records by year

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

584

085

086

087

088

089

090

091

092

993

194

095

196

097

098

099

000

001

002

003

304

005

006

007

108

009

310

011

012

013

014

015

316

017

018

019

020

021

322

Fish measured by surveyors

Measured length distribution

See how the 264 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 4.7 cm
Median: 5.1 cm
Upper quarter: 5.6 cm
Largest: 7.8 cm

0–99 mm

264

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Claw

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

Stone loach Minnow Atlantic salmon Brown / sea trout European eel Brook lamprey

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 →