RiverFish

Bullhead · Cottus gobio

Bullhead in the Streams to Humber

Largest measured bullhead: 11 cm

The largest bullhead measured in Environment Agency surveys of the Streams to Humber was 11 cm, recorded at Beckside Farm, Mill Beck FOULNES3 on 25 September 2005.

Across 66 measured bullhead, the median measured length was 6.8 cm.

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

See bullhead records across England →

Most recent observation2 June 2025Sand Bridge, Mires Beck, nr Ellerker FOULNES4
Largest measured bullhead
11 cm
Median length
6.8 cm
Fish measured
66
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.

LengthSurvey dateSurvey locationSurvey ID
11 cm25 Sept 2005Beckside Farm, Mill Beck FOULNES387782
10 cm14 Jul 2021Beckside Farm, Mill Beck FOULNES3161653
10 cm25 Sept 2005Beckside Farm, Mill Beck FOULNES387782
9.9 cm25 Sept 2005Beckside Farm, Mill Beck FOULNES387782
9.7 cm26 Aug 2010Beckside Farm, Mill Beck FOULNES3124058
9.5 cm4 Jul 2014Beckside Farm, Mill Beck FOULNES3141768
9.3 cm3 Jun 2015Beckside Farm, Mill Beck FOULNES3144858
9 cm25 Sept 2005Beckside Farm, Mill Beck FOULNES387782
8.8 cm25 Sept 2005Beckside Farm, Mill Beck FOULNES387782
8.7 cm14 Jul 2021Beckside Farm, Mill Beck FOULNES3161653

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
Sand Bridge, Mires Beck, nr Ellerker FOULNES420 Sept 20162 Jun 20252
Beckside Farm, Mill Beck FOULNES310 Oct 20022 Jun 202512

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

2002–2025

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 66 measured fish were spread across different length ranges.

Smallest
2.7 cm
Lower quarter
5.9 cm
Median
6.8 cm
Upper quarter
8.1 cm
Largest
11 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Streams to Humber

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

European eel Stone loach 3-spined stickleback Roach Brown / sea trout Flounder

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 →