RiverFish

Bullhead · Cottus gobio

Bullhead in the River Cogden Gill

Largest measured bullhead: 10.2 cm

The largest bullhead measured in Environment Agency surveys of the River Cogden Gill was 10.2 cm, recorded at Cogden Gill Beck nr Cogden Hall on 2 September 2013.

Across 107 measured bullhead, the median measured length was 6 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 Cogden Gill.

See bullhead records across England →

Most recent observation5 September 2024Cogden Gill Beck nr Cogden Hall
Largest measured bullhead
10.2 cm
Median length
6 cm
Fish measured
107
Survey locations
1

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
10.2 cm2 Sept 2013Cogden Gill Beck nr Cogden Hall138483
9.5 cm3 Aug 2011Cogden Gill Beck nr Cogden Hall128941
9.3 cm15 Aug 2012Cogden Gill Beck nr Cogden Hall133127
9.3 cm3 Aug 2011Cogden Gill Beck nr Cogden Hall128941
9.2 cm5 Aug 2016Cogden Gill Beck nr Cogden Hall148872
9.1 cm3 Aug 2011Cogden Gill Beck nr Cogden Hall128941
9 cm3 Aug 2011Cogden Gill Beck nr Cogden Hall128941
8.8 cm3 Aug 2011Cogden Gill Beck nr Cogden Hall128941
8.6 cm3 Aug 2011Cogden Gill Beck nr Cogden Hall128941
8.2 cm22 Sept 2014Cogden Gill Beck nr Cogden Hall142940

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 surveyedFirst recordedLast recordedVisits finding bullhead
Cogden Gill Beck nr Cogden Hall30 Aug 20025 Sept 202414

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

2002–2024

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 107 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
4.1 cm
Median
6 cm
Upper quarter
7.4 cm
Largest
10.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Cogden Gill

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

Brown / sea trout Stone loach

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 →