RiverFish

Bullhead · Cottus gobio

Bullhead in the Costa Beck 2011 Project sites

Largest measured bullhead: 9.3 cm

The largest bullhead measured in Environment Agency surveys of the Costa Beck 2011 Project sites was 9.3 cm, recorded at Upper section 3 on 30 July 2013.

Across 17 measured bullhead, the median measured length was 7.1 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Costa Beck 2011 Project sites.

See bullhead records across England →

Most recent observation4 October 2013Lower Section 4
Largest measured bullhead
9.3 cm
Median length
7.1 cm
Fish measured
17
Survey locations
13

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
9.3 cm30 Jul 2013Upper section 3140237
9.1 cm30 Jul 2013Upper section 3140237
8.2 cm30 Jul 2013Upper section 3140237
8.1 cm30 Jul 2013Upper section 3140237
7.5 cm30 Jul 2013Upper Section 1140238
7.3 cm30 Jul 2013Upper section 3140237
7.3 cm30 Jul 2013Upper section 2140236
7.1 cm30 Jul 2013Upper section 3140237
7.1 cm30 Jul 2013Upper section 2140236
6.8 cm30 Jul 2013Upper section 3140237

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
Lower Section 420 Oct 20114 Oct 20132
Lower Section 320 Oct 20114 Oct 20132
Lower Section 120 Oct 20114 Oct 20132
Middle Section 45 Oct 20113 Oct 20132
Middle Section 33 Oct 20133 Oct 20131
Middle Section 25 Oct 20113 Oct 20132
Middle Section 15 Oct 20113 Oct 20132
Lower Middle (new) Section 42 Oct 20132 Oct 20131
Upper section 33 Oct 201130 Jul 20132
Upper section 23 Oct 201130 Jul 20132
Upper Section 13 Oct 201130 Jul 20132
Oxfolds Beck30 Jul 201330 Jul 20131
Lower Section 520 Oct 201120 Oct 20111

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

2011–2013

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 17 measured fish were spread across different length ranges.

Smallest
1.8 cm
Lower quarter
4.5 cm
Median
7.1 cm
Upper quarter
7.5 cm
Largest
9.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Costa Beck 2011 Project sites

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

Brown / sea trout Rainbow trout Grayling European eel

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 →