Bullhead · Cottus gobio

Bullhead in the Darwell River

Largest measured bullhead: 8.7 cm

The largest bullhead measured in Environment Agency surveys of the Darwell River was 8.7 cm, recorded at Williards Hill Farm (Socknersh Stream) on 13 September 2012.

Across 176 measured bullhead, the median measured length was 4.1 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Darwell River.

See bullhead records across England →

Most recent observation26 August 2016Robertsbridge Museum · 2 fish

Largest measured bullhead: 8.7 cm
Median length: 4.1 cm
Fish measured: 176
Survey locations: 3

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
8.7 cm	13 Sept 2012	Williards Hill Farm (Socknersh Stream)	133502
8.6 cm	1 Aug 2007	Robertsbridge Museum	106428
8.1 cm	1 Aug 2007	Robertsbridge Museum	106428
7.8 cm	1 Aug 2007	Robertsbridge Museum	106428
7.8 cm	1 Aug 2007	Robertsbridge Museum	106428
7.7 cm	21 Aug 2012	Cackle Street Darwell	132959
7.5 cm	22 Aug 2012	Robertsbridge Museum	132957
7.5 cm	22 Aug 2012	Robertsbridge Museum	132957
7.5 cm	1 Aug 2007	Robertsbridge Museum	106428
7.4 cm	1 Aug 2007	Robertsbridge Museum	106428

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
Robertsbridge Museum	1 Aug 2007	26 Aug 2016	3
Cackle Street Darwell	21 Aug 2012	18 Aug 2016	2
Williards Hill Farm (Socknersh Stream)	13 Sept 2012	13 Sept 2012	1

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

2007–2016

Survey records by year

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

107

008

009

010

011

312

013

014

015

216

Fish measured by surveyors

Measured length distribution

See how the 176 measured fish were spread across different length ranges.

Smallest: 2.5 cm
Lower quarter: 3.5 cm
Median: 4.1 cm
Upper quarter: 5.7 cm
Largest: 8.7 cm

0–99 mm

176

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Darwell River

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

Brown / sea trout

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 →