Bullhead · Cottus gobio

Bullhead in the Main River Axe

Largest measured bullhead: 9.1 cm

The largest bullhead measured in Environment Agency surveys of the Main River Axe was 9.1 cm, recorded at Knowle Farm on 23 August 2011.

Across 84 measured bullhead, the median measured length was 5.8 cm.

Surveyors recorded weights for 6 bullhead. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.3 oz (0.008 kg).

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

See bullhead records across England →

Most recent observation16 October 2025Ford

Largest measured bullhead: 9.1 cm
Median length: 5.8 cm
Fish measured: 84
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.

Length	Survey date	Survey location	Survey ID
9.1 cm	23 Aug 2011	Knowle Farm	127528
8.6 cm	28 Jun 1991	Upstream Longwater	80704
8.4 cm	28 Jun 1991	Downstream Highovers Weir	80703
8.1 cm	28 Jun 1991	Downstream Highovers Weir	80703
7.9 cm	23 Aug 2011	Ford	127529
7.8 cm	28 Jun 1991	Upstream Longwater	80704
7.6 cm	23 Aug 2011	Ford	127529
7.6 cm	23 Aug 2011	Knowle Farm	127528
7.6 cm	28 Jun 1991	Upstream Longwater	80704
7.4 cm	28 Jun 1991	Upstream Longwater	80704

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 surveyed	First recorded	Last recorded	Visits finding bullhead
Ford	23 Aug 2011	16 Oct 2025	2
Riverside Farm (Te)	4 Jul 2013	4 Jul 2013	1
Knowle Farm	23 Aug 2011	23 Aug 2011	1
Batch Farm	23 Aug 2011	23 Aug 2011	1
Weare Bridge	30 Aug 2002	30 Aug 2002	1
Upstream Longwater	28 Jun 1991	28 Jun 1991	1
Downstream Highovers Weir	28 Jun 1991	28 Jun 1991	1

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

1991–2025

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

291

092

093

094

095

096

097

098

099

000

001

102

003

004

005

006

007

008

009

010

311

012

113

014

015

016

017

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 84 measured fish were spread across different length ranges.

Smallest: 1.9 cm
Lower quarter: 4.8 cm
Median: 5.8 cm
Upper quarter: 6.8 cm
Largest: 9.1 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 6 bullhead. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.004 kg)
Lower quarter: 0.2 oz (0.006 kg)
Median: 0.2 oz (0.007 kg)
Upper quarter: 0.3 oz (0.008 kg)
Heaviest: 0.3 oz (0.008 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Main River Axe

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

Roach Gudgeon Pike European eel 3-spined stickleback Perch

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 →