3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Roxwell Brook

Largest measured 3-spined stickleback: 6.2 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Roxwell Brook was 6.2 cm, recorded at Patience Bridge on 19 February 1998.

Across 361 measured 3-spined stickleback, the median measured length was 3.5 cm.

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

See 3-spined stickleback records across England →

Most recent observation3 December 2020u/s Skreens Park Rd Bridge · 2 fish

Largest measured 3-spined stickleback: 6.2 cm
Median length: 3.5 cm
Fish measured: 361
Survey locations: 4

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
6.2 cm	19 Feb 1998	Patience Bridge	13432
6.1 cm	19 Feb 1998	Patience Bridge	13432
6 cm	19 Feb 1998	Patience Bridge	13432
5.9 cm	20 Jan 2005	Patience Bridge	84202
5.8 cm	19 Feb 1998	Patience Bridge	13432
5.8 cm	18 Feb 1998	Writtle Agricultural College	13430
5.5 cm	19 Feb 1998	Patience Bridge	13432
5.5 cm	19 Feb 1998	Patience Bridge	13432
5.4 cm	19 Feb 1998	Patience Bridge	13432
5.4 cm	19 Feb 1998	Patience Bridge	13432

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
u/s Skreens Park Rd Bridge	13 Nov 2019	3 Dec 2020	2
Writtle Agricultural College	18 Feb 1998	30 Mar 2012	3
Patience Bridge	19 Feb 1998	20 Jan 2005	2
Roxwell Village	18 Feb 1998	18 Feb 1998	1

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

1998–2020

Survey records by year

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

398

099

000

001

002

003

004

205

006

007

008

009

010

011

112

013

014

015

016

017

018

119

120

Fish measured by surveyors

Measured length distribution

See how the 361 measured fish were spread across different length ranges.

Smallest: 2.1 cm
Lower quarter: 3 cm
Median: 3.5 cm
Upper quarter: 4.4 cm
Largest: 6.2 cm

0–99 mm

361

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Roxwell Brook

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

Bullhead Stone loach Minnow Dace Roach Chub

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 →