Bullhead · Cottus gobio

Bullhead in the Main River Sheppey

Largest measured bullhead: 10.6 cm

The largest bullhead measured in Environment Agency surveys of the Main River Sheppey was 10.6 cm, recorded at Charlton House on 13 September 1991.

Across 172 measured bullhead, the median measured length was 6.7 cm.

Surveyors recorded weights for 73 bullhead. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.7 oz (0.019 kg).

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

See bullhead records across England →

Most recent observation22 September 2023Melsbury Farm

Largest measured bullhead: 10.6 cm
Median length: 6.7 cm
Fish measured: 172
Survey locations: 9

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
10.6 cm	13 Sept 1991	Charlton House	82168
10 cm	10 Sept 1991	Upstream Woodford Bridge	82429
9.5 cm	13 Sept 1991	Charlton House	82168
9.5 cm	10 Sept 1991	Upstream Woodford Bridge	82429
9.3 cm	6 Sept 1991	Coxley Wick	82435
9.2 cm	29 May 2012	D/s Woodford Bridge	132251
9.1 cm	13 Sept 1991	Charlton House	82168
9.1 cm	10 Sept 1991	Upstream Woodford Bridge	82429
9 cm	10 Sept 1991	Upstream Woodford Bridge	82429
8.9 cm	10 Sept 1991	Upstream Woodford Bridge	82429

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
Melsbury Farm	22 Sept 2023	22 Sept 2023	1
Hurn Weir	21 Sept 2023	21 Sept 2023	1
D/s Woodford Bridge	29 May 2012	28 Jul 2023	3
D/s A371	29 May 2012	29 May 2012	1
Godney Farm (Te)	16 Jun 2010	14 Jun 2011	2
Charlton House	13 Sept 1991	13 Sept 1991	1
Upstream Woodford Bridge	10 Sept 1991	10 Sept 1991	1
Downstream Dulcote	10 Sept 1991	10 Sept 1991	1
Coxley Wick	6 Sept 1991	6 Sept 1991	1

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

1991–2023

Survey records by year

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

491

092

093

094

095

096

097

098

099

000

001

002

003

004

005

006

007

008

009

110

111

212

013

014

015

016

017

118

019

020

021

022

323

Fish measured by surveyors

Measured length distribution

See how the 172 measured fish were spread across different length ranges.

Smallest: 1.8 cm
Lower quarter: 5.5 cm
Median: 6.7 cm
Upper quarter: 7.6 cm
Largest: 10.6 cm

0–99 mm

170

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 73 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.004 kg)
Median: 0.2 oz (0.007 kg)
Upper quarter: 0.4 oz (0.01 kg)
Heaviest: 0.7 oz (0.019 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Main River Sheppey

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

European eel 3-spined stickleback Brown / sea trout Stone loach Chub Dace

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 →