RiverFish

Bullhead · Cottus gobio

Bullhead in the River Derwent (Yorkshire) tributaries

Largest measured bullhead: 11.1 cm

The largest bullhead measured in Environment Agency surveys of the River Derwent (Yorkshire) tributaries was 11.1 cm, recorded at Crosscliff beck on 15 August 2018.

Across 261 measured bullhead, the median measured length was 5.6 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 Derwent (Yorkshire) tributaries.

See bullhead records across England →

Most recent observation30 September 2024Jugger Howe beck
Largest measured bullhead
11.1 cm
Median length
5.6 cm
Fish measured
261
Survey locations
16

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
11.1 cm15 Aug 2018Crosscliff beck153204
11 cm29 Aug 2012Whisperdales beck133104
11 cm29 Aug 2012Whisperdales beck133104
9.2 cm16 Aug 2018Lowdales beck153419
8.9 cm29 Aug 2012Whisperdales beck133104
8.8 cm3 Sept 2012Bogmire gill beck133548
8.8 cm28 Aug 2012Crosscliff beck133099
8.6 cm29 Aug 2012Whisperdales beck133104
8.5 cm23 Sept 2012Black beck133771
8.5 cm29 Aug 2012Lowdales beck133103

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
Jugger Howe beck10 Sept 199730 Sept 20245
White beck19 Sept 202419 Sept 20241
Black beck10 Sept 199719 Sept 20246
Crosscliff beck20 Jun 200618 Sept 20245
Bogmire gill beck22 Jun 200612 Sept 20243
Lowdales beck20 Jun 20063 Sept 20244
Whisperdales beck29 Aug 201216 Aug 20182
Low North beck21 Jun 200615 Aug 20184
Brompton beck21 Jun 200619 Sept 20122
Scampston beck21 Jun 200629 Aug 20122
Barlam Beck, Barlam Bridge DERBT342 Jul 20022 Jul 20021
Spital Beck, Barton Bridge DERBT331 Jul 20021 Jul 20021
Settrington Beck, d/s Marr House DERBT301 Jul 20021 Jul 20021
Menethorpe Beck upstream road bridge.1 Jul 20021 Jul 20021
Menethorpe Beck d/s road bridge. DERBT311 Jul 20021 Jul 20021
Cram Beck downstream A64 DERBT321 Jul 20021 Jul 20021

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 261 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
4.6 cm
Median
5.6 cm
Upper quarter
6.8 cm
Largest
11.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent (Yorkshire) tributaries

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

Brown / sea trout Stone loach Minnow 3-spined stickleback Dace Pike

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 →