RiverFish

Bullhead · Cottus gobio

Bullhead in the Main river sites

Largest measured bullhead: 5.4 cm

The largest bullhead measured in Environment Agency surveys of the Main river sites was 5.4 cm, recorded at Lower Bockhampton on 14 June 2011.

Across 8 measured bullhead, the median measured length was 2.4 cm.

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

See bullhead records across England →

Most recent observation13 September 2023Lower Bockhampton
Largest measured bullhead
5.4 cm
Median length
2.4 cm
Fish measured
8
Survey locations
24

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
5.4 cm14 Jun 2011Lower Bockhampton126495
5 cm14 Jun 2011Lower Bockhampton126495
2.6 cm17 Aug 2011Upstream Sandhills127469
2.5 cm17 Aug 2011Upstream Sandhills127469
2.3 cm17 Aug 2011Upstream Sandhills127469
2 cm17 Aug 2011Upstream Sandhills127469
1.9 cm17 Aug 2011Upstream Sandhills127469
1.5 cm17 Aug 2011Upstream Sandhills127469

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
Lower Bockhampton13 Jul 200613 Sept 20233
Cruxton23 Aug 200513 Sept 20234
Upstream Sandhills17 Aug 201124 Aug 20173
Chilfrome Downstream Bridge9 Oct 201222 Sept 20162
Crockways9 Sept 200912 Sept 20163
Holmebridge25 Sept 200922 Oct 20152
Opposite Ambulance Station7 Oct 200913 Oct 20152
Wrackleford18 Oct 200623 Sept 20152
d/s Woodsford6 Sept 20054 Sept 20153
d/s Louds Mill18 Sept 200919 Aug 20153
Lewell Mill9 Sept 200918 Aug 20152
Ford at Moreton12 Sept 200518 Aug 20153
d/s Hangmans Weir15 Oct 201315 Oct 20131
Muckleford d/s of bridge15 Oct 201315 Oct 20131
Crockway Farm9 Oct 20139 Oct 20131
Upstream Martin River Island14 Aug 201314 Aug 20131
Upstream Woodsford WLMP15 Sept 201015 Sept 20101
Downstream Woodsford WLMP8 Sept 20108 Sept 20101
Muckleford18 Oct 200617 Sept 20092
Whitfield Farm (A37)2 Sept 20092 Sept 20091
Chilfrome Upstream bridge9 Oct 20069 Oct 20061
Maiden Newton House - mill29 Sept 200629 Sept 20061
Rushton Farm6 Sept 20056 Sept 20051
Wareham Boathouse to Swineham Point4 May 20054 May 20051

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

2005–2023

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 8 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
2 cm
Median
2.4 cm
Upper quarter
3.2 cm
Largest
5.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main river sites

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

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