Bullhead · Cottus gobio

Bullhead in the Kettles Beck

Largest measured bullhead: 8.5 cm

The largest bullhead measured in Environment Agency surveys of the Kettles Beck was 8.5 cm, recorded at New Kettlesbeck on 21 July 2011.

Across 13 measured bullhead, the median measured length was 7.1 cm.

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

See bullhead records across England →

Most recent observation8 August 2025Downstream Waters bridge

Largest measured bullhead: 8.5 cm
Median length: 7.1 cm
Fish measured: 13
Survey locations: 3

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
8.5 cm	21 Jul 2011	New Kettlesbeck	130072
8.1 cm	21 Jul 2011	New Kettlesbeck	130072
8 cm	21 Jul 2011	New Kettlesbeck	130072
7.5 cm	21 Jul 2011	New Kettlesbeck	130072
7.2 cm	21 Jul 2011	New Kettlesbeck	130072
7.1 cm	21 Jul 2011	New Kettlesbeck	130072
7.1 cm	21 Jul 2011	New Kettlesbeck	130072
6 cm	21 Jul 2011	New Kettlesbeck	130072
5.8 cm	21 Jul 2011	New Kettlesbeck	130072
5.4 cm	21 Jul 2011	New Kettlesbeck	130072

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
Downstream Waters bridge	17 Jul 1991	8 Aug 2025	10
New Kettlesbeck	21 Jul 2011	19 Jul 2023	4
Lanshaw Farm	8 Jul 1985	15 Aug 2016	6

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

1985–2025

Survey records by year

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

185

086

087

088

089

090

291

092

093

094

095

096

297

098

099

000

001

002

003

004

005

006

107

008

009

010

211

012

213

014

015

316

217

018

119

020

021

022

223

124

125

Fish measured by surveyors

Measured length distribution

See how the 13 measured fish were spread across different length ranges.

Smallest: 4.7 cm
Lower quarter: 5.4 cm
Median: 7.1 cm
Upper quarter: 7.5 cm
Largest: 8.5 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Kettles Beck

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

Brown / sea trout Stone loach Minnow European eel Atlantic salmon 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 →