RiverFish

Bullhead · Cottus gobio

Bullhead in the River Penk

Largest measured bullhead: 11 cm

The largest bullhead measured in Environment Agency surveys of the River Penk was 11 cm, recorded at Radford Bridge on 2 July 2015.

Across 220 measured bullhead, the median measured length was 6.5 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 Penk.

See bullhead records across England →

Most recent observation11 June 2025Cuttlestone Bridge
Largest measured bullhead
11 cm
Median length
6.5 cm
Fish measured
220
Survey locations
12

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 cm2 Jul 2015Radford Bridge145533
10.9 cm9 Jun 2016Acton Mill Bridge, Acton Trussel149412
9.8 cm23 Jun 2015Somerford Mill Farm145137
9.6 cm9 Jun 2016Acton Mill Bridge, Acton Trussel149412
9.6 cm23 Jun 2015Brewood Park Farm145138
9.5 cm9 Jul 2013Cuttlestone Bridge137081
9.4 cm9 Jun 2016Acton Mill Bridge, Acton Trussel149412
9.2 cm23 Jun 2015Brewood Park Farm145138
9.1 cm9 Jul 2013Cuttlestone Bridge137081
9.1 cm9 Jul 2013Cuttlestone Bridge137081

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
Cuttlestone Bridge24 Sept 199611 Jun 202511
Brewood Park Farm9 Oct 199611 Jun 20256
Acton Mill Bridge, Acton Trussel27 Sept 199025 Jun 20246
Radford Bridge31 Aug 19949 Aug 20187
Somerford Mill Farm21 Aug 199023 Jun 20154
Lower Drayton28 Aug 19964 Jun 20153
Stretton Mill12 Sept 199017 Aug 20053
Pendeford Nature Reserve22 Aug 199616 Aug 20052
Blackbrook Nature Trail, Pendeford25 Sept 199031 Jul 19962
Upstream Bilbrook Wrw25 Sept 199025 Sept 19901
Downstream Bilbrook Wrw25 Sept 199025 Sept 19901
Allotment Site Codsall29 Aug 199029 Aug 19901

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

1990–2025

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 220 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
5 cm
Median
6.6 cm
Upper quarter
7.7 cm
Largest
11 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Penk

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

3-spined stickleback Stone loach Perch Gudgeon Minnow Roach

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 →