RiverFish

Bullhead · Cottus gobio

Bullhead in the River Gressenhall watercourse

Largest measured bullhead: 9.2 cm

The largest bullhead measured in Environment Agency surveys of the River Gressenhall watercourse was 9.2 cm, recorded at Longham , Springhead Plantation on 24 March 2006.

Across 94 measured bullhead, the median measured length was 5.6 cm.

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

See bullhead records across England →

Most recent observation24 March 2006Longham , Springhead Plantation · 3 fish
Largest measured bullhead
9.2 cm
Median length
5.6 cm
Fish measured
94
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 cm24 Mar 2006Longham , Springhead Plantation100211
9 cm13 Mar 2006Gressenhall , Taylors Lane Ford100214
8.4 cm13 Mar 2006Gressenhall , Dunfer Hole100215
8.4 cm13 Mar 2006Gressenhall , Dunfer Hole100215
8 cm13 Mar 2006Gressenhall , Dunfer Hole100215
8 cm13 Mar 2006Gressenhall , Taylors Lane Ford100214
7.9 cm13 Mar 2006Gressenhall , Taylors Lane Ford100214
7.8 cm13 Mar 2006Gressenhall , Dunfer Hole100215
7.8 cm13 Mar 2006Gressenhall , Taylors Lane Ford100214
7.6 cm24 Mar 2006Longham , Springhead Plantation100211

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
Longham , Springhead Plantation24 Mar 200624 Mar 20061
Longham , Barn Lane meadows24 Mar 200624 Mar 20061
Gressenhall , Taylors Lane Ford13 Mar 200613 Mar 20061
Gressenhall , Dunfer Hole13 Mar 200613 Mar 20061

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

2006–2006

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 94 measured fish were spread across different length ranges.

Smallest
2.7 cm
Lower quarter
3.4 cm
Median
5.6 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 Gressenhall watercourse

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

3-spined stickleback

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 →