Bullhead · Cottus gobio

Bullhead in the River Manaccan

Largest measured bullhead: 7.9 cm

The largest bullhead measured in Environment Agency surveys of the River Manaccan was 7.9 cm, recorded at Manaccan on 3 June 2011.

Across 45 measured bullhead, the median measured length was 5.5 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 Manaccan.

See bullhead records across England →

Most recent observation3 June 2011Manaccan · 45 fish

Largest measured bullhead: 7.9 cm
Median length: 5.5 cm
Fish measured: 45
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
7.9 cm	3 Jun 2011	Manaccan	126557
7.7 cm	3 Jun 2011	Manaccan	126557
7.4 cm	3 Jun 2011	Manaccan	126557
7.3 cm	3 Jun 2011	Manaccan	126557
7.1 cm	3 Jun 2011	Manaccan	126557
7 cm	3 Jun 2011	Manaccan	126557
7 cm	3 Jun 2011	Manaccan	126557
7 cm	3 Jun 2011	Manaccan	126557
6.8 cm	3 Jun 2011	Manaccan	126557
6.6 cm	3 Jun 2011	Manaccan	126557

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
Manaccan	28 Jul 1987	3 Jun 2011	2
Polkanoggo	10 Jul 1987	22 Jun 2005	2
Tregidden	20 Jul 1987	20 Jul 1987	1

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

1987–2011

Survey records by year

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

387

088

089

090

091

092

093

094

095

096

097

098

099

000

001

002

003

004

105

006

007

008

009

010

111

Fish measured by surveyors

Measured length distribution

See how the 45 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 4.7 cm
Median: 5.5 cm
Upper quarter: 6.5 cm
Largest: 7.9 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Manaccan

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

Brown / sea trout 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 →