3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Willow Brook

Largest measured 3-spined stickleback: 7 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Willow Brook was 7 cm, recorded at Bulwick on 5 August 1998.

Across 28 measured 3-spined stickleback, 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 Willow Brook.

See 3-spined stickleback records across England →

Most recent observation25 October 2018Walcot Lodge DS Site

Largest measured 3-spined stickleback: 7 cm
Median length: 5.5 cm
Fish measured: 28
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
7 cm	5 Aug 1998	Bulwick	54467
6.5 cm	11 Aug 1998	Apethorpe	54470
6.5 cm	6 Aug 1998	Downstream Deene Lake	54466
6.5 cm	5 Aug 1998	Bulwick	54467
6 cm	11 Aug 1998	Apethorpe	54470
6 cm	11 Aug 1998	Apethorpe	54470
6 cm	6 Aug 1998	Downstream Deene Lake	54466
6 cm	6 Aug 1998	Downstream Deene Lake	54466
6 cm	5 Aug 1998	Bulwick	54467
6 cm	5 Aug 1998	Bulwick	54467

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
Walcot Lodge DS Site	25 Oct 2018	25 Oct 2018	1
Woodnewton	26 Oct 2011	26 Oct 2011	1
Apethorpe	11 Aug 1998	11 Aug 1998	1
Downstream Deene Lake	6 Aug 1998	6 Aug 1998	1
Bulwick	18 Apr 1995	5 Aug 1998	2
Weldon	10 Feb 1989	10 Feb 1989	1
Stanion Lane	10 Feb 1989	10 Feb 1989	1

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

1989–2018

Survey records by year

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

289

090

091

092

093

094

195

096

097

398

099

000

001

002

003

004

005

006

007

008

009

010

111

012

013

014

015

016

017

118

Fish measured by surveyors

Measured length distribution

See how the 28 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 5 cm
Median: 5.5 cm
Upper quarter: 6 cm
Largest: 7 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Willow Brook

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

Chub Roach Gudgeon Perch Bullhead European eel

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 →