RiverFish

Bullhead · Cottus gobio

Bullhead in the River Thet

Largest measured bullhead: 8.9 cm

The largest bullhead measured in Environment Agency surveys of the River Thet was 8.9 cm, recorded at Snetterton Gravel Pits on 1 August 2012.

Across 77 measured bullhead, the median measured length was 6.4 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 Thet.

See bullhead records across England →

Most recent observation22 October 2024Manor Farm Shropham · 10 fish
Largest measured bullhead
8.9 cm
Median length
6.4 cm
Fish measured
77
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
8.9 cm1 Aug 2012Snetterton Gravel Pits132568
8.7 cm1 Aug 2012Snetterton Gravel Pits132568
8.5 cm22 Oct 2024Manor Farm Shropham167733
8.3 cm22 Oct 2024Manor Farm Shropham167733
8.3 cm1 Aug 2012Snetterton Gravel Pits132568
8.2 cm22 Oct 2024Manor Farm Shropham167733
8.2 cm1 Aug 2012Snetterton Gravel Pits132568
8.1 cm1 Aug 2012Snetterton Gravel Pits132568
8 cm18 Sept 2024Snetterton Gravel Pits167124
7.9 cm1 Aug 2012Snetterton Gravel Pits132568

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
Manor Farm Shropham22 Oct 202422 Oct 20241
Snetterton Gravel Pits22 Jan 199318 Sept 20246
East Harling21 Jul 198827 Sept 20122
Bridgham Bridge28 Jan 199313 Aug 20123
Thetford15 Feb 199329 Nov 19952
Kilverstone Estate24 Nov 199524 Nov 19951
Brettenham12 Feb 199323 Nov 19952
Larlingford16 Nov 199516 Nov 19951

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

1988–2024

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 77 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
5.3 cm
Median
6.4 cm
Upper quarter
7.3 cm
Largest
8.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Thet

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

Roach Pike Gudgeon Perch Dace 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 →