Bullhead · Cottus gobio

Bullhead in the River Ouse

Largest measured bullhead: 6.6 cm

The largest bullhead measured in Environment Agency surveys of the River Ouse was 6.6 cm, recorded at Naburn Weir (single anode) on 28 June 2019.

Across 6 measured bullhead, the median measured length was 5 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.

See bullhead records across England →

Most recent observation28 June 2019Naburn Weir (single anode) · 3 fish

Largest measured bullhead: 6.6 cm
Median length: 5 cm
Fish measured: 6
Survey locations: 7

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
6.6 cm	28 Jun 2019	Naburn Weir (single anode)	154794
6.1 cm	28 Jun 2019	Naburn Weir (single anode)	154794
5.3 cm	28 Jun 2019	Naburn Weir (single anode)	154794
4.8 cm	19 Sept 2001	Beningborough - Fry Survey	130603
3.3 cm	27 Jul 2011	Beningbrough Village (single anode)	128908
3.2 cm	14 Aug 2017	Naburn - Fry Survey	151433

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 surveyed	First recorded	Last recorded	Visits finding bullhead
Naburn Weir (single anode)	13 Jul 2001	28 Jun 2019	3
Naburn - Fry Survey	14 Aug 2017	14 Aug 2017	1
Linton-on-Ouse, below weir (single anode)	17 Jul 2014	17 Jul 2014	1
Beningbrough Village (single anode)	27 Jul 2011	21 Jun 2013	2
Naburn Weir (gill net)	15 Jul 2002	15 Jul 2002	1
Naburn Weir (boom boat site)	23 Jul 1999	15 Jul 2002	2
Beningborough - Fry Survey	19 Sept 2001	19 Sept 2001	1

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

1999–2019

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

199

000

201

302

003

004

005

006

007

008

009

010

111

012

113

114

015

016

117

018

119

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 3.2 cm
Lower quarter: 3.7 cm
Median: 5.1 cm
Upper quarter: 5.9 cm
Largest: 6.6 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ouse

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

Roach Perch Gudgeon Ruffe Bleak 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 →