RiverFish

Bullhead · Cottus gobio

Bullhead in the Main River Okement

Largest measured bullhead: 7.7 cm

The largest bullhead measured in Environment Agency surveys of the Main River Okement was 7.7 cm, recorded at Hill Barton (Dip)* on 19 September 2017.

Across 50 measured bullhead, the median measured length was 5.8 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 River Okement.

See bullhead records across England →

Most recent observation17 September 2024Downstream Iddesleigh Bridge (Dip) · 64 fish
Largest measured bullhead
7.7 cm
Median length
5.8 cm
Fish measured
50
Survey locations
18

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
7.7 cm19 Sept 2017Hill Barton (Dip)*152095
7.3 cm16 Oct 2017Upstream Jacobstowe Bridge (Dip)152086
7.2 cm16 Oct 2017Upstream Jacobstowe Bridge (Dip)152086
7.1 cm19 Sept 2017Hill Barton (Dip)*152095
6.8 cm16 Oct 2017Upstream Jacobstowe Bridge (Dip)152086
6.8 cm19 Sept 2017Hill Barton (Dip)*152095
6.6 cm16 Oct 2017Downstream Monkokehampton Bridge (Dip)152087
6.6 cm16 Oct 2017Downstream Monkokehampton Bridge (Dip)152087
6.6 cm19 Sept 2017Downstream Woodhall Bridge (Dip)152094
6.5 cm16 Oct 2017Downstream Iddesleigh Bridge (Dip)152090

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
Downstream Iddesleigh Bridge (Dip)15 Aug 199717 Sept 20246
Downstream Woodhall Bridge (Dip)15 Aug 199730 Aug 20246
Dornaford (Dip)14 Aug 199730 Aug 20245
Downstream Monkokehampton Bridge (Dip)15 Aug 199729 Aug 20246
Upstream Knowle Bridge (Dip/5 min)20 Jul 202322 Aug 20242
Upstream Jacobstowe Bridge (Dip)14 Aug 199720 Aug 20246
Okement Foot (Dip)25 Aug 199726 Jul 20245
South Dornaford (5 min)16 Aug 202316 Aug 20231
Brightly Bridge (5 min)16 Aug 202316 Aug 20231
Woodhall Copse (5 min)10 Aug 202310 Aug 20231
Upstream Monkeokehampton Weir (5 min)4 Aug 20234 Aug 20231
Old Broomford (5 min)20 Jul 202320 Jul 20231
Ladderplat Wood (5 min)20 Jul 202320 Jul 20231
Higher Cadham Farm (5 min)10 Jul 202310 Jul 20231
Hill Barton (Dip)*25 Aug 199719 Sept 20175
Holme (Dip)*15 Aug 199720 Jul 20114
Downstream Town Centre (Dip)*14 Aug 199720 Jul 20114
Downstream Knowle Bridge (Dip)*14 Aug 199720 Jul 20114

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

1997–2024

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 50 measured fish were spread across different length ranges.

Smallest
3.6 cm
Lower quarter
5.4 cm
Median
5.8 cm
Upper quarter
6.5 cm
Largest
7.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Okement

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

Atlantic salmon Brown / sea trout Stone loach European eel Minnow

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 →