Bullhead · Cottus gobio

Bullhead in the River Flit

Largest measured bullhead: 10 cm

The largest bullhead measured in Environment Agency surveys of the River Flit was 10 cm, recorded at Old Park Farm Toddington on 25 April 2016.

Across 604 measured bullhead, the median measured length was 6.7 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 Flit.

See bullhead records across England →

Most recent observation10 May 2022Westoning · 4 fish

Largest measured bullhead: 10 cm
Median length: 6.7 cm
Fish measured: 604
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
10 cm	25 Apr 2016	Old Park Farm Toddington	147955
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275
9.7 cm	7 Mar 1989	Clophill	29275

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
Westoning	9 Apr 2015	10 May 2022	3
Old Park Farm Toddington	12 Apr 2007	29 Apr 2022	4
Beaumont Farm Hollington	21 Feb 2013	21 Feb 2013	1
Beadlow	7 Mar 1989	21 Feb 2013	3
Clophill	7 Mar 1989	8 May 1998	2

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

1989–2022

Survey records by year

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

289

090

091

092

093

094

095

096

097

298

099

000

001

002

003

004

005

006

107

008

009

010

111

012

213

014

115

216

017

018

019

020

021

222

Fish measured by surveyors

Measured length distribution

See how the 604 measured fish were spread across different length ranges.

Smallest: 2.6 cm
Lower quarter: 5.8 cm
Median: 6.7 cm
Upper quarter: 7.7 cm
Largest: 10 cm

0–99 mm

603

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Flit

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

Gudgeon Minnow Stone loach Dace Roach 3-spined stickleback

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 →