Bullhead · Cottus gobio

Bullhead in the River Uck

Largest measured bullhead: 13.6 cm

The largest bullhead measured in Environment Agency surveys of the River Uck was 13.6 cm, recorded at Uckfield on 18 August 2021.

Across 835 measured bullhead, the median measured length was 5.7 cm.

Surveyors recorded weights for 536 bullhead. The median was 0.1 oz (0.002 kg) and the largest recorded weight was 0.4 oz (0.012 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 Uck.

See bullhead records across England →

Most recent observation14 August 2025Uckfield · 31 fish

Largest measured bullhead: 13.6 cm
Median length: 5.7 cm
Fish measured: 835
Survey locations: 11

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
13.6 cm	18 Aug 2021	Uckfield	160159
11.5 cm	20 Aug 2003	Great Streele	77116
9.6 cm	17 Sept 2024	Buxted Bridge	167162
9.3 cm	3 Sept 2003	Ridgewood Bridge	76922
9.2 cm	1 Aug 2024	Uckfield	166436
9.2 cm	5 Sept 2007	Owlsbury Farm	107232
9 cm	2 Sept 2003	Owlsbury Farm	76920
8.9 cm	14 Aug 2025	Uckfield	177952
8.9 cm	1 Aug 2024	Uckfield	166436
8.9 cm	3 Sept 2003	Ridgewood Bridge	76922

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
Uckfield	20 Aug 2015	14 Aug 2025	8
Buxted Bridge	20 Aug 2003	13 Aug 2025	12
Bradfords Bridge	12 Aug 2011	12 Aug 2025	3
Honey Green Caravan Park	8 Aug 2013	7 Aug 2024	3
Upstream Isfield Gate	10 Oct 2019	10 Oct 2019	1
Great Streele	20 Aug 2003	5 Sept 2013	3
Hastingsford Bridge	1 Sept 2003	30 Apr 2013	2
Owlsbury Farm	2 Sept 2003	5 Sept 2007	5
Isfield Weir	5 Aug 2003	6 Aug 2007	5
Little Horsted	17 Sept 2003	17 Sept 2003	1
Ridgewood Bridge	3 Sept 2003	3 Sept 2003	1

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

2003–2025

Survey records by year

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

703

204

205

206

207

008

209

010

211

112

413

014

415

016

217

218

319

020

121

022

223

324

325

Fish measured by surveyors

Measured length distribution

See how the 835 measured fish were spread across different length ranges.

Smallest: 2.6 cm
Lower quarter: 4.2 cm
Median: 5.7 cm
Upper quarter: 6.8 cm
Largest: 13.6 cm

0–99 mm

833

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 536 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 (0.012 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 Uck

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

Stone loach Minnow Roach Gudgeon Chub 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 →