RiverFish

Bullhead · Cottus gobio

Bullhead in the River Brett (Headwaters)

Largest measured bullhead: 9.2 cm

The largest bullhead measured in Environment Agency surveys of the River Brett (Headwaters) was 9.2 cm, recorded at Hill Farm Bridge on 10 March 1997.

Across 68 measured bullhead, the median measured length was 5.5 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 Brett (Headwaters).

See bullhead records across England →

Most recent observation15 March 2016Nether Hall Farm · 12 fish
Largest measured bullhead
9.2 cm
Median length
5.5 cm
Fish measured
68
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.

LengthSurvey dateSurvey locationSurvey ID
9.2 cm10 Mar 1997Hill Farm Bridge13352
7.6 cm15 Mar 2016Nether Hall Farm147916
7.5 cm10 Mar 1997Hill Farm Bridge13352
7.4 cm12 Feb 2010Lavenham STW121214
7.3 cm12 Feb 2010Hill Farm Bridge121213
7.3 cm10 Mar 1997Hill Farm Bridge13352
7.2 cm12 Feb 2010Hill Farm Bridge121213
7.2 cm26 May 2004Nether Hall Farm84177
7.2 cm26 May 2004Nether Hall Farm84177
7.2 cm26 May 2004Nether Hall Farm84177

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
Nether Hall Farm26 May 200415 Mar 20163
Lavenham STW12 Feb 201012 Feb 20101
Hill Farm Bridge10 Mar 199712 Feb 20103
Lavenham Ford26 May 200426 May 20041

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

1997–2016

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 68 measured fish were spread across different length ranges.

Smallest
3.4 cm
Lower quarter
5 cm
Median
5.5 cm
Upper quarter
6.6 cm
Largest
9.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Brett (Headwaters)

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

Minnow 3-spined stickleback 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 →