Bullhead · Cottus gobio

Bullhead in the Henny Brook

Largest measured bullhead: 9.6 cm

The largest bullhead measured in Environment Agency surveys of the Henny Brook was 9.6 cm, recorded at Great Henny on 12 March 2010.

Across 115 measured bullhead, the median measured length was 5.3 cm.

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

See bullhead records across England →

Most recent observation12 March 2010Great Henny · 7 fish

Largest measured bullhead: 9.6 cm
Median length: 5.3 cm
Fish measured: 115
Survey locations: 2

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
9.6 cm	12 Mar 2010	Great Henny	121354
9 cm	25 Jul 1997	Great Henny	13379
8.7 cm	25 Jul 1997	Great Henny	13379
8.1 cm	25 Jul 1997	Great Henny	13379
8.1 cm	25 Jul 1997	Great Henny	13379
8 cm	25 Jul 1997	Great Henny	13379
7.9 cm	25 Jul 1997	Great Henny	13379
7.9 cm	7 Apr 1997	Daws Hall	13378
7.6 cm	12 Mar 2010	Daws Hall	121353
7.6 cm	25 Jul 1997	Great Henny	13379

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
Great Henny	25 Jul 1997	12 Mar 2010	3
Daws Hall	7 Apr 1997	12 Mar 2010	3

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

1997–2010

Survey records by year

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

297

098

099

000

001

002

003

204

005

006

007

008

009

210

Fish measured by surveyors

Measured length distribution

See how the 115 measured fish were spread across different length ranges.

Smallest: 1.5 cm
Lower quarter: 4.5 cm
Median: 5.3 cm
Upper quarter: 6.2 cm
Largest: 9.6 cm

0–99 mm

115

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Henny Brook

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

Minnow

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 →