3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Lee Navigation

Largest measured 3-spined stickleback: 3.1 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Lee Navigation was 3.1 cm, recorded at New Gauge on 4 July 1978.

Across 3 measured 3-spined stickleback, the median measured length was 2.8 cm.

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

See 3-spined stickleback records across England →

Most recent observation16 September 2025Upstream Carthagena Lock

Largest measured 3-spined stickleback: 3.1 cm
Median length: 2.8 cm
Fish measured: 3
Survey locations: 9

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
3.1 cm	4 Jul 1978	New Gauge	116730
2.8 cm	7 Oct 2004	Ware Priory	82728
2.7 cm	4 Jul 1978	New Gauge	116730

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
Upstream Carthagena Lock	16 Sept 2025	16 Sept 2025	1
Hertford Basin	8 Jul 2025	8 Jul 2025	1
Dobbs Weir	8 Jul 2013	8 Jul 2013	1
Ware Priory	23 Sept 2003	20 Aug 2009	3
Ponders End	29 Nov 1978	29 Nov 1978	1
Waltham Abbey Marsh	22 Nov 1978	22 Nov 1978	1
New Gauge	4 Jul 1978	4 Jul 1978	1
Fieldes Weir to Dobbs Weir	19 Apr 1978	19 Apr 1978	1
Stanstead Lock Upstream	5 Apr 1978	5 Apr 1978	1

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

1978–2025

Survey records by year

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

578

079

080

081

082

083

084

085

086

087

088

089

090

091

092

093

094

095

096

097

098

099

000

001

002

103

104

005

006

007

008

109

010

011

012

113

014

015

016

017

018

019

020

021

022

023

024

225

Fish measured by surveyors

Measured length distribution

See how the 3 measured fish were spread across different length ranges.

Smallest: 2.7 cm
Lower quarter: 2.8 cm
Median: 2.8 cm
Upper quarter: 3 cm
Largest: 3.1 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Lee Navigation

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

Roach Perch Pike Chub Bleak Tench

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 →