3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Fleet

Largest measured 3-spined stickleback: 6.8 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Fleet was 6.8 cm, recorded at Girton on 22 May 2019.

Across 13 measured 3-spined stickleback, the median measured length was 4.6 cm.

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

See 3-spined stickleback records across England →

Most recent observation20 June 2023Girton

Largest measured 3-spined stickleback: 6.8 cm
Median length: 4.6 cm
Fish measured: 13
Survey locations: 1

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
6.8 cm	22 May 2019	Girton	154509
6.6 cm	25 Jun 2015	Girton	145280
5.6 cm	24 May 2017	Girton	150427
5.1 cm	22 May 2019	Girton	154509
5 cm	22 May 2019	Girton	154509
4.9 cm	17 Jun 2011	Girton	126604
4.6 cm	17 Jun 2011	Girton	126604
4.5 cm	22 May 2019	Girton	154509
4.4 cm	17 Jun 2011	Girton	126604
4.3 cm	17 Jun 2011	Girton	126604

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
Girton	17 Jun 2011	20 Jun 2023	5

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

2011–2023

Survey records by year

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

111

012

013

014

115

016

117

018

119

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 13 measured fish were spread across different length ranges.

Smallest: 2.5 cm
Lower quarter: 4.3 cm
Median: 4.6 cm
Upper quarter: 5.1 cm
Largest: 6.8 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Fleet

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

European eel Roach Spined loach Perch Bullhead Gudgeon

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 →