RiverFish

Bullhead · Cottus gobio

Bullhead in the River Hull eel surveys

Largest measured bullhead: 10.3 cm

The largest bullhead measured in Environment Agency surveys of the River Hull eel surveys was 10.3 cm, recorded at Mires beck at Beckside Farm on 14 July 2021.

Across 143 measured bullhead, the median measured length was 6.3 cm.

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

See bullhead records across England →

Most recent observation11 June 2025Driffield Navigational canal at Brigham
Largest measured bullhead
10.3 cm
Median length
6.3 cm
Fish measured
143
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.

LengthSurvey dateSurvey locationSurvey ID
10.3 cm14 Jul 2021Mires beck at Beckside Farm159946
10.1 cm14 Jul 2021Mires beck at Beckside Farm159946
10 cm14 Jul 2021Mires beck at Beckside Farm159946
10 cm14 Jul 2021Mires beck at Beckside Farm159946
10 cm13 Jun 2017Driffield Navigational canal at Brigham150550
9.5 cm4 Jul 2014Mires beck at Beckside Farm141753
9.4 cm14 Jul 2021Mires beck at Beckside Farm159946
9.4 cm14 Jul 2021Mires beck at Beckside Farm159946
9.4 cm9 Jun 2017Mires beck at Beckside Farm150552
9.3 cm5 Jun 2019Arram beck154588

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
Driffield Navigational canal at Brigham10 Jun 201311 Jun 20255
Arram beck9 Jun 20114 Jun 20256
Mires beck at Sands bridge7 Jun 20132 Jun 20254
Mires beck at Beckside Farm7 Jun 20132 Jun 20258
Watton beck at Bridge House Farm9 Jun 20115 Jun 20235
Scurf dike at R.Hull confluence8 Jun 20158 Jun 20151
Skerne Beck Upstream confluence with West Beck11 Jul 20115 Jun 20153
West beck at Bell Mills28 Sept 201128 Sept 20111
Old Howe drain at N.Frodingham26 Sept 201126 Sept 20111

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

2011–2025

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 143 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
5.4 cm
Median
6.3 cm
Upper quarter
7.6 cm
Largest
10.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hull eel surveys

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

Roach 3-spined stickleback European eel Pike Stone loach Perch

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 →