RiverFish

Bullhead · Cottus gobio

Bullhead in the River Wharfe tributaries

Largest measured bullhead: 8.7 cm

The largest bullhead measured in Environment Agency surveys of the River Wharfe tributaries was 8.7 cm, recorded at Hambleton beck on 6 August 2014.

Across 87 measured bullhead, the median measured length was 5.9 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 Wharfe tributaries.

See bullhead records across England →

Most recent observation6 August 2014Hambleton beck · 37 fish
Largest measured bullhead
8.7 cm
Median length
5.9 cm
Fish measured
87
Survey locations
4

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
8.7 cm6 Aug 2014Hambleton beck142189
8.7 cm6 Aug 2014Collingham Beck142183
7.8 cm6 Aug 2014Collingham Beck142183
7.7 cm6 Aug 2014Hambleton beck142189
7.5 cm6 Aug 2014Hambleton beck142189
7.3 cm6 Aug 2014Hambleton beck142189
7.3 cm6 Aug 2014Collingham Beck142183
7.2 cm6 Aug 2014Hambleton beck142189
7.2 cm6 Aug 2014Hambleton beck142189
7 cm6 Aug 2014Collingham Beck142183

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
Riffa Beck u/s Wharfe6 Aug 20146 Aug 20141
Riffa Beck at Riffa Bridge25 Jun 20086 Aug 20142
Hambleton beck6 Aug 20146 Aug 20141
Collingham Beck13 Jul 20046 Aug 20143

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

2004–2014

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 87 measured fish were spread across different length ranges.

Smallest
3.5 cm
Lower quarter
5.2 cm
Median
5.9 cm
Upper quarter
6.6 cm
Largest
8.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wharfe tributaries

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

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 →