RiverFish

Bullhead · Cottus gobio

Bullhead in the Main River Parrett

Largest measured bullhead: 10.2 cm

The largest bullhead measured in Environment Agency surveys of the Main River Parrett was 10.2 cm, recorded at Upstream Lopen Brook on 5 July 1994.

Across 268 measured bullhead, the median measured length was 5.8 cm.

Surveyors recorded weights for 53 bullhead. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.8 oz (0.023 kg).

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

See bullhead records across England →

Most recent observation31 July 2014Thorney Moor (Te) · 1 fish
Largest measured bullhead
10.2 cm
Median length
5.8 cm
Fish measured
268
Survey locations
12

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
10.2 cm5 Jul 1994Upstream Lopen Brook79613
10.1 cm5 Jul 1994Upstream Lopen Brook79613
9.9 cm5 Jul 1994Upstream Lopen Brook79613
9.4 cm8 Jun 1994Downstream Petherton Bridge79624
9.4 cm2 Jun 1994Downstream Gawbridge Mill79627
8.8 cm5 Jul 1994Upstream Lopen Brook79613
8.8 cm30 Jun 1994Between Haslebury Bridges (Se-06)79610
8.8 cm8 Jun 1994Downstream Petherton Bridge79624
8.7 cm8 Jun 1994Downstream Petherton Bridge79624
8.7 cm2 Jun 1994Downstream Gawbridge Mill79627

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
Thorney Moor (Te)9 Jun 199431 Jul 20145
Downstream Lecher Water15 Jul 199415 Aug 20133
Bow Barn Farm30 Sept 200914 Aug 20133
Gawbridge13 Sept 200513 Aug 20134
Haselbury Mill10 Jul 20091 Aug 20133
Between Haslebury Bridges (Se-06)30 Jun 199415 May 20063
South Petherton (Te)18 Sept 20037 Sept 20053
Upstream Broad River29 Jun 199419 May 20002
Upstream Chinnock Brook6 Jul 19946 Jul 19941
Upstream Lopen Brook5 Jul 19945 Jul 19941
Downstream Petherton Bridge8 Jun 19948 Jun 19941
Downstream Gawbridge Mill2 Jun 19942 Jun 19941

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

1994–2014

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 268 measured fish were spread across different length ranges.

Smallest
2.2 cm
Lower quarter
4.8 cm
Median
5.8 cm
Upper quarter
6.7 cm
Largest
10.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 53 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest
0 oz (0.001 kg)
Lower quarter
0.1 oz (0.004 kg)
Median
0.2 oz (0.007 kg)
Upper quarter
0.4 oz (0.01 kg)
Heaviest
0.8 oz (0.023 kg)

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

More fish in this river

Explore the Main River Parrett

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

European eel Minnow Stone loach Roach 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 →