RiverFish

Bullhead · Cottus gobio

Bullhead in the River Glem

Largest measured bullhead: 10.2 cm

The largest bullhead measured in Environment Agency surveys of the River Glem was 10.2 cm, recorded at Scotchford Bridge on 8 June 2000.

Across 80 measured bullhead, the median measured length was 7.5 cm.

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

See bullhead records across England →

Most recent observation4 July 2012Lodge Farm Ford · 3 fish
Largest measured bullhead
10.2 cm
Median length
7.5 cm
Fish measured
80
Survey locations
8

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
10.2 cm8 Jun 2000Scotchford Bridge15510
10 cm8 Jun 2000Scotchford Bridge15510
10 cm18 Jun 1997Scotchford Bridge13866
9.7 cm18 May 1994Mill Farm Glemsford13858
9.6 cm8 Jun 2006Scotchford Bridge99866
9.5 cm19 May 1994Scotchford Bridge13859
9.5 cm1 Mar 1985Moorhouse Farm13840
9.3 cm16 May 1991Lodge Farm Ford13855
9.2 cm13 Jun 2006Lodge Farm Ford100060
9.2 cm18 Jun 1997Scotchford Bridge13866

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 surveyedFirst recordedLast recordedVisits finding bullhead
Lodge Farm Ford25 Mar 19854 Jul 20126
Moorhouse Farm1 Mar 198516 Jun 20065
Martins Nest Bridge A2 Apr 19859 Jun 20062
Scotchford Bridge28 May 19858 Jun 20067
Mill Farm Glemsford26 Feb 19857 Jun 20004
Parsonage Farm27 Feb 19856 Jun 20004
Boxted Hall6 Mar 19856 Mar 19851
Martins Nest Bridge B15 Sept 198115 Sept 19811

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

1981–2012

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 80 measured fish were spread across different length ranges.

Smallest
5 cm
Lower quarter
6.5 cm
Median
7.5 cm
Upper quarter
8.9 cm
Largest
10.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Glem

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

Dace Chub Roach European eel Gudgeon Pike

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 →