RiverFish

Bullhead · Cottus gobio

Bullhead in the River Welland

Largest measured bullhead: 10.8 cm

The largest bullhead measured in Environment Agency surveys of the River Welland was 10.8 cm, recorded at 300 yard Downstream Ashley Gauging Weir on 13 May 2026.

Across 81 measured bullhead, the median measured length was 6.5 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 Welland.

See bullhead records across England →

Most recent observation13 May 2026300 yard Downstream Ashley Gauging Weir · 1 fish
Largest measured bullhead
10.8 cm
Median length
6.5 cm
Fish measured
81
Survey locations
38

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
10.8 cm13 May 2026300 yard Downstream Ashley Gauging Weir181291
10.5 cm4 May 1993Downstream Rockingham Road Bridge54257
9 cm4 May 1993Downstream Rockingham Road Bridge54257
9 cm4 May 1993Downstream Rockingham Road Bridge54257
9 cm4 May 1993Downstream Rockingham Road Bridge54257
8.5 cm13 May 1996Upstream Bringhurst Road Bridge54286
8.5 cm13 May 1996Upstream Bringhurst Road Bridge54286
8.5 cm4 May 1993Downstream Rockingham Road Bridge54257
8 cm25 Apr 1996Great Bowden54560
8 cm25 Apr 1996Great Bowden54560

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
300 yard Downstream Ashley Gauging Weir30 Apr 199313 May 20267
Upstream Great Bowden Road Bridge2 Jun 20087 May 20266
Upstream Lubenham Road Bridge25 May 200029 Apr 202611
Hudds Mill Downstream Weir (main channel)27 Aug 200916 Oct 20244
Stamford Meadows10 May 199315 Oct 202411
Sandy Lane28 Jul 200010 Oct 202410
Upstream Wakerly Road Bridge10 May 19931 Oct 20187
Upstream Ashley Gauging Weir16 Apr 201424 Sept 20183
Downstream Harringworth Road Bridge7 May 199327 Sept 201711
Downstream Duddington Road Bridge9 Jul 199021 Sept 201715
Downstream Uffington20 May 199325 Oct 201611
Downstream Tinwell weir2 Sept 200914 Oct 20163
Downstream Lolham Bridge17 Sept 199010 Oct 20144
Upstream Welham Road Bridge27 May 20099 Oct 20144
Upstream Bringhurst Road Bridge30 Apr 19933 Jul 20147
Thorpe by Water2 Jul 20142 Jul 20141
Upstream Ashley Road Bridge16 May 201130 Jun 20142
Weston19 May 201419 May 20141
Downstream Gretton Road Bridge12 Jul 200013 May 20144
Downstream STW Market Harborough21 May 20089 May 20144
500 yards Upstream Ashley Gauging Weir16 Apr 201416 Apr 20141
Downstream Lolham Mill Stream27 Jul 200024 Oct 20136
Brook Drain23 Apr 201323 Apr 20131
Rockingham Road Bridge Upstream12 May 201112 May 20111
Blackgate13 Aug 199611 May 20117
Right Hand Bank18 Nov 200818 Nov 20081
Right Hand Bank18 Nov 200818 Nov 20081
Middle Section18 Nov 200818 Nov 20081
Full Section18 Nov 200818 Nov 20081
Wherry's Mill20 Apr 200525 Jun 20082
Downstream Rockingham Road Bridge24 Feb 19833 Aug 20064
Turtle Bridge1 Aug 20061 Aug 20061
Upstream Tallington Road Bridge27 Jul 200027 Jul 20001
Tallington Mill Upstream26 Jul 200026 Jul 20001
Upstream Tinwell Mill11 May 199320 Jul 20002
Downstream Bringhurst Road Bridge28 Jun 200028 Jun 20001
Great Bowden25 Apr 199625 Apr 19961
Downstream Hudds Mill - back channel18 May 199318 May 19931

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

1983–2026

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 81 measured fish were spread across different length ranges.

Smallest
3.7 cm
Lower quarter
5.5 cm
Median
6.5 cm
Upper quarter
7.5 cm
Largest
10.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Welland

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

Pike Dace European eel Roach Perch Gudgeon

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 →