RiverFish

Bullhead · Cottus gobio

Bullhead in the River Rother

Largest measured bullhead: 10.8 cm

The largest bullhead measured in Environment Agency surveys of the River Rother was 10.8 cm, recorded at McGregors Pond on 23 August 2017.

Across 179 measured bullhead, the median measured length was 7.8 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 Rother.

See bullhead records across England →

Most recent observation19 August 2025McGregors Pond
Largest measured bullhead
10.8 cm
Median length
7.8 cm
Fish measured
179
Survey locations
10

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 cm23 Aug 2017McGregors Pond151574
10.6 cm23 Aug 2017McGregors Pond151574
10.6 cm23 Aug 2017McGregors Pond151574
10.5 cm23 Aug 2017McGregors Pond151574
10.5 cm23 Aug 2017McGregors Pond151574
10.4 cm10 Jul 2017Whitting confluence150868
10.3 cm23 Aug 2017McGregors Pond151574
10.2 cm22 Jul 2008Whitting confluence114135
10.1 cm23 Aug 2017McGregors Pond151574
10.1 cm31 Jul 2007Whitting confluence107901

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
McGregors Pond3 Sept 200719 Aug 20256
Whitting confluence31 Jul 200729 Jul 202510
.Rother Valley Country Park, d/s weir16 Jul 200228 Jul 202516
Downstream Orgreave weir28 Aug 201928 Aug 20191
Staveley Lane (B6053)21 Sept 200722 Jun 20113
Woodhouse washlands (NFMP)11 Jul 200611 Jul 20061
Killamarsh (ds weir)20 Jun 200620 Jun 20061
Woodhouse - Fry Survey24 Sept 200324 Sept 20031
River Rother at Birdholme Road Bridge19 Jun 200219 Jun 20021
River Rother at North Wingfield10 May 200210 May 20021

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

2002–2025

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 179 measured fish were spread across different length ranges.

Smallest
2.6 cm
Lower quarter
6.5 cm
Median
7.8 cm
Upper quarter
8.8 cm
Largest
10.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Rother

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

Roach 3-spined stickleback Chub Brown / sea trout Gudgeon 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 →