3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Moretons Leam

Largest measured 3-spined stickleback: 7.5 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Moretons Leam was 7.5 cm, recorded at Rings End on 30 March 1999.

Across 50 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 Moretons Leam.

See 3-spined stickleback records across England →

Most recent observation4 November 2022Stanground

Largest measured 3-spined stickleback: 7.5 cm
Median length: 5.5 cm
Fish measured: 50
Survey locations: 6

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
7.5 cm	30 Mar 1999	Rings End	54176
6.5 cm	12 Apr 1999	Upstream Eldernell	54173
6.5 cm	12 Apr 1999	Upstream Eldernell	54173
6.5 cm	12 Apr 1999	Upstream Eldernell	54173
6.5 cm	12 Apr 1999	Upstream Eldernell	54173
6.5 cm	12 Apr 1999	Upstream Eldernell	54173
6 cm	14 Apr 1999	Downstream Eldernell	54174
6 cm	30 Mar 1999	Rings End	54176
6 cm	30 Mar 1999	Rings End	54176
6 cm	30 Mar 1999	Rings End	54176

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
Stanground	4 Nov 2022	4 Nov 2022	1
Downstream Eldernell	14 Apr 1999	14 Apr 1999	1
Upstream Eldernell	12 Apr 1999	12 Apr 1999	1
Rings End	30 Mar 1999	30 Mar 1999	1
March Farmers	29 Mar 1999	29 Mar 1999	1
Little Bridge	25 Mar 1999	25 Mar 1999	1

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

1999–2022

Survey records by year

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

599

000

001

002

003

004

005

006

007

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017

018

019

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021

122

Fish measured by surveyors

Measured length distribution

See how the 50 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 5.5 cm
Median: 5.5 cm
Upper quarter: 5.5 cm
Largest: 7.5 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Moretons Leam

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

Roach Perch Pike Common bream Ruffe 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 →