RiverFish

Bullhead · Cottus gobio

Bullhead in the River Main Lew

Largest measured bullhead: 9 cm

The largest bullhead measured in Environment Agency surveys of the River Main Lew was 9 cm, recorded at Stone on 27 July 2011.

Across 2,436 measured bullhead, the median measured length was 3.8 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 Main Lew.

See bullhead records across England →

Most recent observation19 August 2025Lee · 43 fish
Largest measured bullhead
9 cm
Median length
3.8 cm
Fish measured
2,436
Survey locations
7

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 cm27 Jul 2011Stone127179
8.7 cm3 Sept 2013Lee138408
8.5 cm22 Jul 2022Lew Mill161506
8.4 cm4 Aug 2016Stone148850
8.4 cm27 Jul 2011Stone127179
8.2 cm24 Jul 2024Stone166875
8.2 cm27 Jul 2011Stone127179
8.1 cm18 Jul 2018Stone153079
8.1 cm11 Aug 2015Lew Mill145844
8.1 cm14 Sept 2012Lee133592

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
Lee17 Aug 198419 Aug 202521
Lew Mill10 Aug 198411 Aug 202526
Stone16 Aug 19845 Aug 202521
Upstream Lee21 Aug 202321 Aug 20231
Ebbsford20 Aug 198420 Sept 20016
Lew Wood15 Aug 198411 Sept 20015
Foxcombe13 Aug 19844 Aug 19994

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

1984–2025

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 2,436 measured fish were spread across different length ranges.

Smallest
1.6 cm
Lower quarter
3.1 cm
Median
3.8 cm
Upper quarter
5.9 cm
Largest
9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Lew

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

Brown / sea trout Atlantic salmon Stone loach European eel Minnow Grayling

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 →