Bullhead · Cottus gobio

Bullhead in the Langden RSA/HMWB 2011 onwards

Largest measured bullhead: 9.2 cm

The largest bullhead measured in Environment Agency surveys of the Langden RSA/HMWB 2011 onwards was 9.2 cm, recorded at 2L on 4 July 2011.

Across 7 measured bullhead, the median measured length was 7.5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Langden RSA/HMWB 2011 onwards.

See bullhead records across England →

Most recent observation11 October 201811L

Largest measured bullhead: 9.2 cm
Median length: 7.5 cm
Fish measured: 7
Survey locations: 9

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
9.2 cm	4 Jul 2011	2L	130293
9 cm	4 Jul 2011	4L	130297
7.9 cm	4 Jul 2011	4L	130297
7.5 cm	4 Jul 2011	4L	130297
7.5 cm	4 Jul 2011	2L	130293
6.8 cm	4 Jul 2011	2L	130293
6.4 cm	4 Jul 2011	2L	130293

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
9L	7 Aug 2018	11 Oct 2018	2
11L	7 Aug 2018	11 Oct 2018	2
1L	22 Oct 2012	10 Oct 2018	6
15L	7 Aug 2018	7 Aug 2018	1
13L	7 Aug 2018	7 Aug 2018	1
5L	23 Oct 2012	6 Aug 2018	2
3L	18 Jul 2016	6 Aug 2018	3
4L	4 Jul 2011	4 Jul 2011	1
2L	4 Jul 2011	4 Jul 2011	1

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

2011–2018

Survey records by year

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

211

212

013

014

015

416

117

1018

Fish measured by surveyors

Measured length distribution

See how the 7 measured fish were spread across different length ranges.

Smallest: 6.4 cm
Lower quarter: 7.2 cm
Median: 7.5 cm
Upper quarter: 8.5 cm
Largest: 9.2 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Langden RSA/HMWB 2011 onwards

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

Brown / sea trout Atlantic salmon

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 →