Bullhead · Cottus gobio

Bullhead in the Costa Beck

Largest measured bullhead: 9.7 cm

The largest bullhead measured in Environment Agency surveys of the Costa Beck was 9.7 cm, recorded at Costa beck at Gatehouses on 11 September 2012.

Across 70 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 Costa Beck.

See bullhead records across England →

Most recent observation27 September 2023Costa beck at Gatehouses

Largest measured bullhead: 9.7 cm
Median length: 5.8 cm
Fish measured: 70
Survey locations: 6

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
9.7 cm	11 Sept 2012	Costa beck at Gatehouses	133491
9.5 cm	20 Sept 2012	Costa beck at Sleightholme Fm	133781
9.1 cm	14 Aug 2019	Costa beck at Gatehouses	155173
8.6 cm	14 Aug 2019	Costa beck at Gatehouses	155173
8.2 cm	31 Aug 2012	Oxfolds beck	133539
8.1 cm	14 Aug 2019	Costa beck at Gatehouses	155173
7.9 cm	14 Aug 2019	Costa beck at Gatehouses	155173
7.6 cm	18 Aug 2018	Oxfolds beck	153409
7.6 cm	20 Sept 2012	Costa Beck Upstream Pickering Beck DERBT107	133782
7.5 cm	20 Sept 2012	Costa Beck Upstream Pickering Beck DERBT107	133782

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
Costa beck at Gatehouses	22 Jun 2006	27 Sept 2023	4
Costa Beck Upstream Pickering Beck DERBT107	23 Mar 1995	30 Aug 2023	15
Oxfolds beck	22 Jun 2006	18 Aug 2018	3
Costa beck at Sleightholme Fm	20 Sept 2012	20 Sept 2012	1
Costa beck at High Costa mill	22 Jun 2006	22 Jun 2006	1
Costa Beck d/s Pickering Beck	23 Mar 1995	4 Oct 2000	2

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

1995–2023

Survey records by year

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

295

096

197

098

099

200

101

102

103

104

105

406

107

008

109

010

111

412

113

014

015

016

017

118

119

020

021

022

223

Fish measured by surveyors

Measured length distribution

See how the 70 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 5.1 cm
Median: 5.8 cm
Upper quarter: 7 cm
Largest: 9.7 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Costa Beck

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

Brown / sea trout Rainbow trout Grayling Minnow 3-spined stickleback Stone loach

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 →