RiverFish

Bullhead · Cottus gobio

Bullhead in the River Meon

Largest measured bullhead: 7.5 cm

The largest bullhead measured in Environment Agency surveys of the River Meon was 7.5 cm, recorded at Moorhen trout fishery on 14 July 2011.

Across 241 measured bullhead, the median measured length was 5.1 cm.

Surveyors recorded weights for 2 bullhead. The median was 0.1 oz (0.003 kg) and the largest recorded weight was 0.1 oz (0.003 kg).

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

See bullhead records across England →

Most recent observation5 August 2025Mislingford Beat · 118 fish
Largest measured bullhead
7.5 cm
Median length
5.1 cm
Fish measured
241
Survey locations
15

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
7.5 cm14 Jul 2011Moorhen trout fishery127115
7.5 cm14 Jul 2011Moorhen trout fishery127115
7.4 cm27 Jul 2010Upstream of Silver Springs123885
7.2 cm5 Aug 2025Mislingford Beat179751
7.2 cm5 Aug 2025Mislingford Beat179751
7.2 cm12 Jul 2011Titchfield Mill old river126969
7.1 cm14 Jul 2011Moorhen trout fishery127115
7.1 cm14 Jul 2011Northfields Farm127112
7.1 cm27 Jul 2010Upstream of Silver Springs123885
7 cm5 Aug 2025Mislingford Beat179751

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
Upstream of Silver Springs10 Aug 20095 Aug 202512
Mislingford Beat6 Aug 20085 Aug 202513
Riplington21 Jul 201129 Aug 20233
Moorhen trout fishery14 Jul 20118 Aug 20233
Exton26 Jul 20118 Aug 20233
St Clair's Farm19 Jul 20117 Aug 20233
Meonstoke21 Jul 20117 Aug 20233
Upper Rookesbury14 Jul 20113 Aug 20233
Northfields Farm14 Jul 20113 Aug 20233
Wickham gardens12 Jul 201131 Jul 20233
Holywell19 Jul 201131 Jul 20233
Titchfield Mill old river12 Jul 201127 Jul 20233
Titchfield Canal26 Jul 201127 Jul 20233
Anjou Bridge18 Sept 20035 Aug 20042
Wickham; Chesapeake Mill21 Aug 200121 Aug 20011

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

2001–2025

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 241 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
4.4 cm
Median
5.1 cm
Upper quarter
5.8 cm
Largest
7.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 2 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
0.1 oz (0.003 kg)
Median
0.1 oz (0.003 kg)
Upper quarter
0.1 oz (0.003 kg)
Heaviest
0.1 oz (0.003 kg)

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

More fish in this river

Explore the River Meon

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

Brown / sea trout European eel Minnow Chub Brook lamprey 3-spined stickleback

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 →