Bullhead · Cottus gobio

Bullhead in the Stanford Brook

Largest measured bullhead: 8.7 cm

The largest bullhead measured in Environment Agency surveys of the Stanford Brook was 8.7 cm, recorded at Bennett Close on 31 October 2019.

Across 50 measured bullhead, the median measured length was 6.4 cm.

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

See bullhead records across England →

Most recent observation17 May 2023Downstream Clays Lake · 1 fish

Largest measured bullhead: 8.7 cm
Median length: 6.4 cm
Fish measured: 50
Survey locations: 3

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
8.7 cm	31 Oct 2019	Bennett Close	155966
8.6 cm	4 May 2023	Bennett Close	162381
8.5 cm	4 May 2023	Bennett Close	162381
8.5 cm	31 Oct 2019	Bennett Close	155966
8.2 cm	31 Oct 2019	Downstream Clays Lake	155965
8 cm	4 May 2023	Bennett Close	162381
8 cm	4 May 2023	Bennett Close	162381
8 cm	4 May 2023	Bennett Close	162381
8 cm	31 Oct 2019	Downstream Clays Lake	155965
7.9 cm	4 May 2023	Bennett Close	162381

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
Downstream Clays Lake	16 Jun 1993	17 May 2023	7
Bennett Close	28 Sept 2011	4 May 2023	4
Upstream Clays Lake	4 Oct 2011	4 Oct 2011	1

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

1993–2023

Survey records by year

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

193

094

095

096

097

098

099

000

001

002

103

104

105

006

007

008

009

010

211

012

013

214

015

016

017

018

219

020

021

022

223

Fish measured by surveyors

Measured length distribution

See how the 50 measured fish were spread across different length ranges.

Smallest: 3.6 cm
Lower quarter: 5.5 cm
Median: 6.4 cm
Upper quarter: 7.6 cm
Largest: 8.7 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Stanford Brook

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

Brown / sea trout

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 →