RiverFish

Bullhead · Cottus gobio

Bullhead in the River Ouse/Ure eel surveys

Largest measured bullhead: 10.1 cm

The largest bullhead measured in Environment Agency surveys of the River Ouse/Ure eel surveys was 10.1 cm, recorded at River Kyle Youlton Lodge on 9 June 2022.

Across 520 measured bullhead, the median measured length was 6.1 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 Ouse/Ure eel surveys.

See bullhead records across England →

Most recent observation16 June 2026Bishopdale Beck at Spickles Bridge
Largest measured bullhead
10.1 cm
Median length
6.1 cm
Fish measured
520
Survey locations
9

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
10.1 cm9 Jun 2022River Kyle Youlton Lodge161162
9.8 cm9 Jun 2022River Kyle Youlton Lodge161162
9.8 cm9 Jun 2022River Kyle Youlton Lodge161162
9.7 cm5 Jun 2018River Tutt at St Helena's Weir152640
9.5 cm7 Jun 2016River Tutt at St Helena's Weir148188
9.4 cm7 Jun 2016River Tutt at St Helena's Weir148188
9.3 cm9 Jun 2022River Kyle Youlton Lodge161162
9.3 cm6 Jun 2022River Tutt at St Helena's Weir160972
9.2 cm9 Jun 2022River Kyle Youlton Lodge161162
9.1 cm7 Jun 2016River Tutt at St Helena's Weir148188

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
Bishopdale Beck at Spickles Bridge3 Jun 201416 Jun 20267
Holbeck at Boroughbridge Road Bridge8 Jun 201015 Jun 20266
River Tutt at St Helena's Weir8 Jun 20104 Jun 20268
River Skell d/s Ripon Bypass2 Jun 20144 Jun 20266
Overton Ings Fyke nets2 Jun 20262 Jun 20261
River Kyle Youlton Lodge9 Jun 20221 Jun 20263
River Foss at Lilling Green (Eel)10 Jun 20145 Jul 20242
River Kyle u/s New Parks Beck13 Jun 201415 Jun 20182
Stillingfleet eel survey4 Jun 20144 Jun 20141

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

2010–2026

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 520 measured fish were spread across different length ranges.

Smallest
1.4 cm
Lower quarter
5.2 cm
Median
6.1 cm
Upper quarter
6.9 cm
Largest
10.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ouse/Ure eel surveys

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

European eel 3-spined stickleback Stone loach Roach Gudgeon 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 →