3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Finchingfield Brook

Largest measured 3-spined stickleback: 6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Finchingfield Brook was 6 cm, recorded at Spains Hall on 20 January 1997.

Across 126 measured 3-spined stickleback, the median measured length was 4.1 cm.

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

See 3-spined stickleback records across England →

Most recent observation27 April 2023Mill End Road Bridge · 25 fish

Largest measured 3-spined stickleback: 6 cm
Median length: 4.1 cm
Fish measured: 126
Survey locations: 3

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 cm	20 Jan 1997	Spains Hall	13410
5.9 cm	27 Apr 2023	Mill End Road Bridge	162735
5.8 cm	20 Jan 1997	Spains Hall	13410
5.6 cm	22 Jan 1997	Champions	13408
5.5 cm	20 Jan 1997	Spains Hall	13410
5.4 cm	22 Jan 1997	Champions	13408
5.3 cm	21 Jan 1997	Mill End Road Bridge	13409
5.2 cm	27 Apr 2023	Mill End Road Bridge	162735
5.2 cm	22 Jan 1997	Champions	13408
5.1 cm	27 Apr 2023	Mill End Road Bridge	162735

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
Mill End Road Bridge	21 Jan 1997	27 Apr 2023	5
Spains Hall	20 Jan 1997	18 Mar 2009	3
Champions	22 Jan 1997	25 Feb 2003	2

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

1997–2023

Survey records by year

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

397

098

099

000

001

002

303

004

005

006

007

008

209

010

011

012

013

014

115

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 126 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 3.5 cm
Median: 4.1 cm
Upper quarter: 4.7 cm
Largest: 6 cm

0–99 mm

126

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Finchingfield Brook

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

Minnow Stone loach Bullhead Brown / sea trout Dace 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 →