RiverFish

Bullhead · Cottus gobio

Bullhead in the Cheriton stream

Largest measured bullhead: 9.2 cm

The largest bullhead measured in Environment Agency surveys of the Cheriton stream was 9.2 cm, recorded at Cheriton stream 4: Cheriton Mill on 19 August 2025.

Across 292 measured bullhead, the median measured length was 6 cm.

Surveyors recorded weights for 3 bullhead. The median was 0.4 oz (0.01 kg) and the largest recorded weight was 0.4 oz (0.01 kg).

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

See bullhead records across England →

Most recent observation20 August 2025Vernal Farm · 72 fish
Largest measured bullhead
9.2 cm
Median length
6 cm
Fish measured
292
Survey locations
10

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
9.2 cm19 Aug 2025Cheriton stream 4: Cheriton Mill179721
9 cm19 Aug 2025Cheriton stream 4: Cheriton Mill179721
9 cm6 Sept 2006Tichborne101588
9 cm6 Sept 2006Upstream of flyover101340
8.5 cm19 Aug 2025Cheriton stream 4: Cheriton Mill179721
8.5 cm11 Aug 2011Cheriton stream 4: Cheriton Mill127379
8.5 cm11 Aug 2011Cheriton stream 4: Cheriton Mill127379
8.2 cm19 Aug 2025Cheriton stream 4: Cheriton Mill179721
8 cm19 Aug 2025Cheriton stream 4: Cheriton Mill179721
7.9 cm19 Aug 2025Cheriton stream 4: Cheriton Mill179721

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
Vernal Farm27 Aug 200820 Aug 202515
Cheriton stream 4: Cheriton Mill10 Sept 200919 Aug 202513
Cheriton stream 2: Habitat Works9 Sept 200930 Jul 20213
Cheriton stream 3: Ironbridge14 Sept 200928 Jul 20213
Tichborne Park31 Aug 201710 Jun 20192
Cheriton stream 1: downstream of flyover9 Sept 200928 Sept 20152
Downstream Vernal Farm30 Aug 201230 Aug 20121
Upstream of Cheriton Mill23 Sept 201023 Sept 20101
Upstream of flyover2 Sept 20056 Sept 20062
Tichborne2 Sept 20056 Sept 20062

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

2005–2025

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 292 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
5 cm
Median
6 cm
Upper quarter
6.7 cm
Largest
9.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.003 kg)
Lower quarter
0.2 oz (0.0065 kg)
Median
0.4 oz (0.01 kg)
Upper quarter
0.4 oz (0.01 kg)
Heaviest
0.4 oz (0.01 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Cheriton stream

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

Brown / sea trout 3-spined stickleback Brook lamprey European eel Atlantic salmon

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 →