Bullhead · Cottus gobio

Bullhead in the Halse Water

Largest measured bullhead: 8.4 cm

The largest bullhead measured in Environment Agency surveys of the Halse Water was 8.4 cm, recorded at Kings Moor (Se-03) on 26 May 2010.

Across 871 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 Halse Water.

See bullhead records across England →

Most recent observation15 July 2021Roughmoor · 271 fish

Largest measured bullhead: 8.4 cm
Median length: 5.1 cm
Fish measured: 871
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
8.4 cm	26 May 2010	Kings Moor (Se-03)	122375
8 cm	13 May 2014	Roughmoor	140759
7.9 cm	13 May 2014	Roughmoor	140759
7.8 cm	13 May 2014	Roughmoor	140759
7.8 cm	26 May 2010	Kings Moor (Se-03)	122375
7.7 cm	15 Jul 2021	Roughmoor	160000
7.6 cm	13 May 2014	Roughmoor	140759
7.5 cm	30 Aug 2016	Wick Farm	149091
7.5 cm	13 May 2014	Roughmoor	140759
7.5 cm	26 May 2010	Kings Moor (Se-03)	122375

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
Roughmoor	12 May 2005	15 Jul 2021	4
Wick Farm	27 Jul 2010	30 Aug 2016	2
Venn's Farm	12 Jul 2011	12 Jul 2011	1
Manor Court	12 Jul 2011	12 Jul 2011	1
Kings Moor (Se-03)	28 Aug 2001	26 May 2010	3

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

2001–2021

Survey records by year

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

101

002

103

004

105

006

107

008

009

210

211

012

013

114

015

116

017

018

019

020

121

Fish measured by surveyors

Measured length distribution

See how the 871 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 4.6 cm
Median: 5.1 cm
Upper quarter: 5.7 cm
Largest: 8.4 cm

0–99 mm

871

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Halse Water

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

Brown / sea trout European eel Minnow Stone loach Atlantic salmon

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 →