Bullhead · Cottus gobio

Bullhead in the Cut-Off Channel

Largest measured bullhead: 8.3 cm

The largest bullhead measured in Environment Agency surveys of the Cut-Off Channel was 8.3 cm, recorded at Hockwold Bridge on 6 May 1994.

Across 51 measured bullhead, the median measured length was 6.3 cm.

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

See bullhead records across England →

Most recent observation21 June 2023Hilgay Bridge · 1 fish

Largest measured bullhead: 8.3 cm
Median length: 6.3 cm
Fish measured: 51
Survey locations: 6

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
8.3 cm	6 May 1994	Hockwold Bridge	29793
8.3 cm	6 May 1994	Hockwold Bridge	29793
7.8 cm	6 May 1994	Hockwold Bridge	29793
7.8 cm	6 May 1994	Hockwold Bridge	29793
7.8 cm	6 May 1994	Hockwold Bridge	29793
7.4 cm	30 Mar 2017	Wissington	150316
7.3 cm	9 May 1994	Blackdyke Farm	29794
7.3 cm	9 May 1994	Blackdyke Farm	29794
7.3 cm	6 May 1994	Hockwold Bridge	29793
7.3 cm	6 May 1994	Hockwold Bridge	29793

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
Hilgay Bridge	21 Jun 2023	21 Jun 2023	1
Wissington	30 Mar 2017	30 Mar 2017	1
Stoke Ferry WTW	27 Mar 2017	27 Mar 2017	1
Wretton	24 Apr 2012	24 Apr 2012	1
Blackdyke Farm	9 May 1994	9 May 1994	1
Hockwold Bridge	6 May 1994	6 May 1994	1

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

1994–2023

Survey records by year

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

294

095

096

097

098

099

000

001

002

003

004

005

006

007

008

009

010

011

112

013

014

015

016

217

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 51 measured fish were spread across different length ranges.

Smallest: 4.9 cm
Lower quarter: 6.1 cm
Median: 6.3 cm
Upper quarter: 7.3 cm
Largest: 8.3 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Cut-Off Channel

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

Roach Perch Pike Ruffe Common bream European eel

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 →