Bullhead · Cottus gobio

Bullhead in the Main River Erme

Largest measured bullhead: 7.5 cm

The largest bullhead measured in Environment Agency surveys of the Main River Erme was 7.5 cm, recorded at Fawns Bridge (Dip/5 min) on 18 September 2007.

Across 77 measured bullhead, the median measured length was 4.6 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 Erme.

See bullhead records across England →

Most recent observation15 September 2023Keaton Weir (5 min) · 29 fish

Largest measured bullhead: 7.5 cm
Median length: 4.6 cm
Fish measured: 77
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
7.5 cm	18 Sept 2007	Fawns Bridge (Dip/5 min)	108443
7.2 cm	21 Aug 2019	Fawns Bridge (Dip/5 min)	155380
7.1 cm	18 Sept 2007	Fawns Bridge (Dip/5 min)	108443
6.7 cm	21 Aug 2019	Fawns Bridge (Dip/5 min)	155380
6.5 cm	21 Aug 2019	Fawns Bridge (Dip/5 min)	155380
6.5 cm	18 Sept 2007	Fawns Bridge (Dip/5 min)	108443
6.5 cm	18 Sept 2007	Fawns Bridge (Dip/5 min)	108443
6.4 cm	21 Aug 2019	Fawns Bridge (Dip/5 min)	155380
6.2 cm	21 Aug 2019	Fawns Bridge (Dip/5 min)	155380
6.2 cm	21 Aug 2019	Fawns Bridge (Dip/5 min)	155380

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
Keaton Weir (5 min)	15 Sept 2023	15 Sept 2023	1
Fawns Bridge (Dip/5 min)	10 Sept 1997	15 Sept 2023	5
Downstream Ivybridge STW (Te)	18 Sept 2007	8 Sept 2023	3
Fawns Bridge Rec Ground (Sp)*	4 Jul 2011	9 Aug 2012	2

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

1997–2023

Survey records by year

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

197

098

099

000

001

002

003

004

005

006

207

008

009

110

111

112

013

014

115

016

017

018

119

020

021

022

323

Fish measured by surveyors

Measured length distribution

See how the 77 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 3.3 cm
Median: 4.6 cm
Upper quarter: 5.8 cm
Largest: 7.5 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Erme

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

Brown / sea trout Atlantic salmon European eel Minnow Stone loach

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 →