3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Brent

Largest measured 3-spined stickleback: 5.4 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Brent was 5.4 cm, recorded at Greenford Bridge on 14 October 2005.

Across 8 measured 3-spined stickleback, the median measured length was 5.2 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 Brent.

See 3-spined stickleback records across England →

Most recent observation17 October 2024Greenford Bridge

Largest measured 3-spined stickleback: 5.4 cm
Median length: 5.2 cm
Fish measured: 8
Survey locations: 7

Individual EA measurements

Largest measured 3-spined stickleback

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
5.4 cm	14 Oct 2005	Greenford Bridge	87071
5.4 cm	14 Oct 2005	Greenford Bridge	87071
5.3 cm	14 Oct 2005	Greenford Bridge	87071
5.3 cm	14 Oct 2005	Greenford Bridge	87071
5.2 cm	14 Oct 2005	Greenford Bridge	87071
4.8 cm	20 Oct 2005	Hanwell Bridge	87070
4.5 cm	14 Oct 2005	Greenford Bridge	87071
3.8 cm	20 Oct 2005	Hanwell Bridge	87070

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where 3-spined stickleback were found

Each point marks a survey location with at least one 3-spined stickleback 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 3-spined stickleback
Greenford Bridge	18 Oct 1994	17 Oct 2024	7
Hanwell Bridge	20 Oct 2005	15 Oct 2024	4
Tokyngton Park	23 Jun 2009	22 Jun 2017	2
Brent Meadows	19 Oct 1994	19 Oct 1994	1
Queensbury Avenue	13 Oct 1994	13 Oct 1994	1
Pitshanger Park	11 Oct 1994	11 Oct 1994	1
Woodburn Close	6 Oct 1994	6 Oct 1994	1

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

1994–2024

Survey records by year

Each bar shows how many survey visits recorded 3-spined stickleback that year.

594

095

096

097

098

099

000

001

002

003

004

205

006

007

008

109

210

011

012

013

014

015

216

117

018

019

020

021

122

123

224

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 4.7 cm
Median: 5.3 cm
Upper quarter: 5.3 cm
Largest: 5.4 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Brent

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

Perch Roach Gudgeon European eel Common carp Dace

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 →