RiverFish

Bullhead · Cottus gobio

Bullhead in the River Main Clyst

Largest measured bullhead: 9.5 cm

The largest bullhead measured in Environment Agency surveys of the River Main Clyst was 9.5 cm, recorded at Venn Farm (WFDo)* on 24 May 2016.

Across 17 measured bullhead, the median measured length was 4.7 cm.

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

See bullhead records across England →

Most recent observation26 May 2023Clyst Honiton (Sp) · 100 fish
Largest measured bullhead
9.5 cm
Median length
4.7 cm
Fish measured
17
Survey locations
6

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
9.5 cm24 May 2016Venn Farm (WFDo)*148080
7.7 cm24 May 2016Venn Farm (WFDo)*148080
7.5 cm24 May 2016Venn Farm (WFDo)*148080
7.5 cm24 May 2016Venn Farm (WFDo)*148080
7 cm24 May 2016Venn Farm (WFDo)*148080
5.6 cm24 May 2016Venn Farm (WFDo)*148080
5 cm24 May 2016Venn Farm (WFDo)*148080
4.7 cm24 May 2016Venn Farm (WFDo)*148080
4.7 cm24 May 2016Venn Farm (WFDo)*148080
4.7 cm24 May 2016Venn Farm (WFDo)*148080

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
Clyst Honiton (Sp)13 May 199726 May 20238
Ashclyst Farm (Sp)13 May 199722 May 20235
Venn Farm (WFDo)*24 May 201624 May 20161
Clyst St. Lawrence (Sp)*14 May 19976 Jun 20002
West Clyst (Sp)*13 May 199713 May 19971
Broadclyst (Sp)*13 May 199713 May 19971

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

1997–2023

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 17 measured fish were spread across different length ranges.

Smallest
3.4 cm
Lower quarter
4.4 cm
Median
4.7 cm
Upper quarter
7 cm
Largest
9.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Clyst

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

European eel Minnow Stone loach 3-spined stickleback Brown / sea trout

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 →