Bullhead · Cottus gobio

Bullhead in the Barham Stream

Largest measured bullhead: 6.6 cm

The largest bullhead measured in Environment Agency surveys of the Barham Stream was 6.6 cm, recorded at Barham Farm (Sp) on 13 June 2018.

Across 4 measured bullhead, the median measured length was 5.5 cm.

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

See bullhead records across England →

Most recent observation8 July 2025Barham Farm (Sp) · 52 fish

Largest measured bullhead: 6.6 cm
Median length: 5.5 cm
Fish measured: 4
Survey locations: 1

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
6.6 cm	13 Jun 2018	Barham Farm (Sp)	152637
6 cm	13 Jun 2018	Barham Farm (Sp)	152637
5.1 cm	13 Jun 2018	Barham Farm (Sp)	152637
4.8 cm	13 Jun 2018	Barham Farm (Sp)	152637

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
Barham Farm (Sp)	14 Aug 1996	8 Jul 2025	6

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

1996–2025

Survey records by year

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

196

097

098

199

000

001

002

003

004

105

006

007

008

009

010

011

112

013

014

015

016

017

118

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 4 measured fish were spread across different length ranges.

Smallest: 4.8 cm
Lower quarter: 5 cm
Median: 5.6 cm
Upper quarter: 6.2 cm
Largest: 6.6 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Barham Stream

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 →