RiverFish

Bullhead · Cottus gobio

Bullhead in the River Mel

Largest measured bullhead: 9.6 cm

The largest bullhead measured in Environment Agency surveys of the River Mel was 9.6 cm, recorded at Meldreth on 29 May 2013.

Across 83 measured bullhead, the median measured length was 6.2 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 Mel.

See bullhead records across England →

Most recent observation29 May 2025Meldreth · 1 fish
Largest measured bullhead
9.6 cm
Median length
6.2 cm
Fish measured
83
Survey locations
3

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
9.6 cm29 May 2013Meldreth136114
9.1 cm29 May 2024Meldreth165412
8.6 cm29 May 2025Meldreth177127
8.6 cm5 Jun 2019Meldreth154715
8.4 cm5 Jun 2019Meldreth154715
8.4 cm29 May 2013Meldreth136114
8.3 cm7 Jun 2012Meldreth131391
8.2 cm5 Jun 2019Meldreth154715
8 cm30 Jun 2016Meldreth148343
7.8 cm7 Jun 2022Meldreth160967

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
Meldreth10 Oct 200829 May 20258
DS Meldreth Mill14 Apr 200429 May 20246
DS Meldreth STW15 Jul 199215 Jul 19921

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

1992–2025

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 83 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
5.5 cm
Median
6.2 cm
Upper quarter
7.2 cm
Largest
9.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mel

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

Brown / sea trout 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 →