Bullhead · Cottus gobio

Bullhead in the River Western Rother

Largest measured bullhead: 9.4 cm

The largest bullhead measured in Environment Agency surveys of the River Western Rother was 9.4 cm, recorded at Woolbeding on 22 July 2009.

Across 2,168 measured bullhead, the median measured length was 5.2 cm.

Surveyors recorded weights for 961 bullhead. The median was 0.1 oz (0.002 kg) and the largest recorded weight was 0.4 oz (0.011 kg).

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

See bullhead records across England →

Most recent observation18 June 2026Coultershaw · 8 fish

Largest measured bullhead: 9.4 cm
Median length: 5.2 cm
Fish measured: 2,168
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.

Length	Survey date	Survey location	Survey ID
9.4 cm	22 Jul 2009	Woolbeding	120809
9.2 cm	4 Jul 2011	Stanbridge	126869
9 cm	31 Jul 2025	Stanbridge	177655
9 cm	23 Jun 2025	Fittleworth Bridge	177074
8.9 cm	4 Jul 2011	Stanbridge	126869
8.8 cm	21 Jul 2009	Terwick Mill	120810
8.6 cm	9 Jul 2003	Stanbridge	76630
8.6 cm	24 Jun 2003	Liss	76742
8.5 cm	31 Jul 2025	Stanbridge	177655
8.5 cm	24 Jul 2025	Terwick Mill	177522

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
Coultershaw	30 Jun 2003	18 Jun 2026	12
Woolbeding	14 Jul 2003	17 Jun 2026	19
Terwick Mill	18 Jul 2002	16 Jun 2026	23
Stanbridge	16 Jul 2002	31 Jul 2025	22
Fittleworth Bridge	24 Jul 2009	23 Jun 2025	7
Liss	27 Sept 2001	18 Jul 2018	8
Stedham Mill Downstream	15 Jul 2016	15 Jul 2016	1
Upstream Mizzards	2 Sept 2014	2 Sept 2014	1
Durford Bridge	17 Jul 2002	2 Sept 2014	7
Adhurst	12 Jul 2002	25 Jun 2008	7
Empshott Mill	4 Oct 2001	2 Jun 2008	7
Habin Bridge	17 Jul 2002	11 Jul 2007	6
Cowdray Estate	19 Sept 2006	19 Sept 2006	1

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

2001–2026

Survey records by year

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

201

702

903

904

805

1006

707

608

409

310

311

612

413

514

515

516

217

418

319

020

021

322

323

524

525

326

Fish measured by surveyors

Measured length distribution

See how the 2,168 measured fish were spread across different length ranges.

Smallest: 1.8 cm
Lower quarter: 4.1 cm
Median: 5.2 cm
Upper quarter: 6.1 cm
Largest: 9.4 cm

0–99 mm

2168

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 961 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0 oz (0.001 kg)
Median: 0.1 oz (0.002 kg)
Upper quarter: 0.1 oz (0.004 kg)
Heaviest: 0.4 oz (0.011 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Western Rother

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

European eel Brown / sea trout Stone loach Minnow Chub Dace

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 →