RiverFish

Bullhead · Cottus gobio

Bullhead in the River DS Lark

Largest measured bullhead: 8.3 cm

The largest bullhead measured in Environment Agency surveys of the River DS Lark was 8.3 cm, recorded at Kings Staunch on 19 January 2001.

Across 18 measured bullhead, the median measured length was 5.4 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 DS Lark.

See bullhead records across England →

Most recent observation10 September 2024Isleham Lock · 1 fish
Largest measured bullhead
8.3 cm
Median length
5.4 cm
Fish measured
18
Survey locations
6

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
8.3 cm19 Jan 2001Kings Staunch30867
7.6 cm9 Sept 2015Wamil Hall146433
7.4 cm5 Sept 2013Wamil Hall138385
7.3 cm5 Sept 2013Wamil Hall138385
6.8 cm5 Sept 2013Wamil Hall138385
6.8 cm26 Oct 2000Branch Bridge30793
6.2 cm5 Sept 2013Wamil Hall138385
6.1 cm14 Sept 2012Isleham Lock133605
5.5 cm4 Sept 2024Mildenhall167150
5.3 cm10 Sept 2024Isleham Lock167147

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
Isleham Lock14 Oct 200310 Sept 20244
Mildenhall4 Sept 20244 Sept 20241
Wamil Hall5 Sept 20139 Sept 20152
East Fen Isleham6 Dec 199014 Sept 20104
Kings Staunch19 Jan 200119 Jan 20011
Branch Bridge26 Oct 200026 Oct 20001

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

1990–2024

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 18 measured fish were spread across different length ranges.

Smallest
2.3 cm
Lower quarter
5 cm
Median
5.4 cm
Upper quarter
6.8 cm
Largest
8.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River DS Lark

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

Roach Perch Pike Dace Gudgeon Common bream

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 →