Bullhead · Cottus gobio

Bullhead in the Main River Lew

Largest measured bullhead: 7.8 cm

The largest bullhead measured in Environment Agency surveys of the Main River Lew was 7.8 cm, recorded at Gribbleford (Te) on 21 August 2017.

Across 253 measured bullhead, the median measured length was 4.7 cm.

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

See bullhead records across England →

Most recent observation8 August 2025U/s Kennel Bridge (Te) · 127 fish

Largest measured bullhead: 7.8 cm
Median length: 4.7 cm
Fish measured: 253
Survey locations: 4

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
7.8 cm	21 Aug 2017	Gribbleford (Te)	151409
7.7 cm	22 Aug 2016	U/s Kennel Bridge (Te)	149087
7.6 cm	10 Aug 2017	U/s Kennel Bridge (Te)	151362
7.4 cm	22 Aug 2016	U/s Kennel Bridge (Te)	149087
7.3 cm	9 Jul 2019	Gribbleford (Te)	154779
7.1 cm	21 Aug 2017	Gribbleford (Te)	151409
7.1 cm	21 Aug 2017	Gribbleford (Te)	151409
7.1 cm	10 Aug 2017	U/s Kennel Bridge (Te)	151362
7 cm	22 Aug 2016	U/s Kennel Bridge (Te)	149087
6.9 cm	10 Aug 2017	U/s Kennel Bridge (Te)	151362

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
U/s Kennel Bridge (Te)	4 Aug 1997	8 Aug 2025	19
Gribbleford (Te)	18 Aug 1997	16 Jul 2025	19
Lewer Bridge (Sp)	19 Aug 1997	7 Aug 2024	6
Passaford (Sp/WFDi)*	19 Aug 1997	2 Aug 2011	4

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

1997–2025

Survey records by year

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

497

498

099

000

001

302

303

204

105

206

207

208

209

210

411

112

113

114

115

116

317

118

219

020

021

022

223

224

225

Fish measured by surveyors

Measured length distribution

See how the 253 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 3.5 cm
Median: 4.7 cm
Upper quarter: 5.6 cm
Largest: 7.8 cm

0–99 mm

253

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Lew

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

Atlantic salmon Brown / sea trout Stone loach Minnow 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 →