RiverFish

Bullhead · Cottus gobio

Bullhead in the Main Tory Brook

Largest measured bullhead: 9 cm

The largest bullhead measured in Environment Agency surveys of the Main Tory Brook was 9 cm, recorded at Plympton Playing Fields on 4 June 2013.

Across 171 measured bullhead, the median measured length was 5.2 cm.

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

See bullhead records across England →

Most recent observation18 June 2025Plympton Playing Fields · 81 fish
Largest measured bullhead
9 cm
Median length
5.2 cm
Fish measured
171
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
9 cm4 Jun 2013Plympton Playing Fields136412
8.5 cm4 Jun 2013Plympton Playing Fields136412
8.4 cm24 Sept 2014Upstream Smallhangar Brook Below Natural Barrier143282
8.3 cm4 Jun 2013Plympton Playing Fields136412
8.2 cm24 Sept 2014Upstream Newnham Road Culvert143278
8 cm18 Jun 2025Plympton Playing Fields177039
7.5 cm18 Jun 2025Plympton Playing Fields177039
7.5 cm4 Jun 2013Plympton Playing Fields136412
7.2 cm4 Jun 2013Plympton Playing Fields136412
7.1 cm18 Jun 2025Plympton Playing Fields177039

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
Plympton Playing Fields28 Jun 200218 Jun 20256
Upstream Smallhangar Brook Below Natural Barrier24 Sept 201424 Sept 20141
Upstream Newnham Road Culvert24 Sept 201424 Sept 20141

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 171 measured fish were spread across different length ranges.

Smallest
2.2 cm
Lower quarter
3 cm
Median
5.2 cm
Upper quarter
6.1 cm
Largest
9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main Tory Brook

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

Brown / sea trout 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 →