RiverFish

Bullhead · Cottus gobio

Bullhead in the Bevern Stream

Largest measured bullhead: 7.9 cm

The largest bullhead measured in Environment Agency surveys of the Bevern Stream was 7.9 cm, recorded at Highbridge Lane Upstream bridge on 4 October 2024.

Across 902 measured bullhead, the median measured length was 4.6 cm.

Surveyors recorded weights for 691 bullhead. The median was 0 oz (0.001 kg) and the largest recorded weight was 0.3 oz (0.008 kg).

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

See bullhead records across England →

Most recent observation6 August 2025Clappers Weir · 2 fish
Largest measured bullhead
7.9 cm
Median length
4.6 cm
Fish measured
902
Survey locations
7

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
7.9 cm4 Oct 2024Highbridge Lane Upstream bridge167559
7.9 cm16 Aug 2004Highbridge Lane Downstream bridge81348
7.8 cm23 Jul 2003Clappers Weir76626
7.6 cm23 Jul 2003Clappers Weir76626
7.5 cm9 Aug 2011Clappers Weir127300
7.5 cm14 Sept 2004Clappers Weir82349
7.4 cm17 Aug 2006Highbridge Lane Downstream bridge102313
7.3 cm4 Oct 2024Highbridge Lane Upstream bridge167559
7.2 cm9 Aug 2011Clappers Weir127300
7.2 cm14 Sept 2004Clappers Weir82349

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
Clappers Weir7 Aug 20026 Aug 202514
Highbridge Lane Upstream bridge11 Aug 20114 Oct 20246
East Chiltington Church9 Aug 20119 Aug 20111
Highbridge Lane Downstream bridge6 Aug 200230 Sept 20097
Bevern Bridge15 Aug 200315 Sept 20093
Brick works15 Aug 200315 Aug 20031
Plumpton Green8 Aug 20038 Aug 20031

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 902 measured fish were spread across different length ranges.

Smallest
1.9 cm
Lower quarter
3.8 cm
Median
4.6 cm
Upper quarter
5.3 cm
Largest
7.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 691 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest
0 oz (0.001 kg)
Lower quarter
0 oz (0.001 kg)
Median
0 oz (0.001 kg)
Upper quarter
0.1 oz (0.002 kg)
Heaviest
0.3 oz (0.008 kg)

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

More fish in this river

Explore the Bevern Stream

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

Brown / sea trout Minnow Stone loach Chub European eel Gudgeon

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 →