RiverFish

Bullhead · Cottus gobio

Bullhead in the Silverbridge Lake

Largest measured bullhead: 7 cm

The largest bullhead measured in Environment Agency surveys of the Silverbridge Lake was 7 cm, recorded at Pondfield on 22 August 2012.

Across 11 measured bullhead, the median measured length was 4.5 cm.

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

See bullhead records across England →

Most recent observation27 August 2014Efford · 4 fish
Largest measured bullhead
7 cm
Median length
4.5 cm
Fish measured
11
Survey locations
3

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 cm22 Aug 2012Pondfield132969
6.2 cm22 Aug 2012Pondfield132969
5.8 cm15 Jul 2014Pondfield141723
5.8 cm15 Jul 2014Pondfield141723
5.3 cm15 Jul 2014Pondfield141723
4.5 cm14 Jul 2014Battisford141700
4 cm27 Aug 2014Efford142423
3.9 cm27 Aug 2014Efford142423
3.9 cm27 Aug 2014Efford142423
3.4 cm27 Aug 2014Efford142423

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
Efford4 Aug 200627 Aug 20142
Pondfield4 Aug 200615 Jul 20143
Battisford14 Jul 201414 Jul 20141

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

2006–2014

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 11 measured fish were spread across different length ranges.

Smallest
3.4 cm
Lower quarter
3.9 cm
Median
4.5 cm
Upper quarter
5.8 cm
Largest
7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Silverbridge Lake

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

Brown / sea trout European eel

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 →