RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Aylesford Stream

Largest measured 3-spined stickleback: 6.6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Aylesford Stream was 6.6 cm, recorded at Swatfield Bridge Garden Centre on 20 May 2025.

Across 23 measured 3-spined stickleback, the median measured length was 4.7 cm.

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

See 3-spined stickleback records across England →

Most recent observation28 April 2026Swatfield Bridge Garden Centre · 6 fish
Largest measured 3-spined stickleback
6.6 cm
Median length
4.7 cm
Fish measured
23
Survey locations
2

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.

LengthSurvey dateSurvey locationSurvey ID
6.6 cm20 May 2025Swatfield Bridge Garden Centre178084
5.5 cm20 May 2025Swatfield Bridge Garden Centre178084
5.5 cm20 May 2025Swatfield Bridge Garden Centre178084
5.5 cm11 Jun 2014Quarrington Farm141219
5.3 cm4 Jun 2014Swatfield Bridge Garden Centre141215
5.2 cm20 May 2025Swatfield Bridge Garden Centre178084
4.9 cm11 Jun 2014Quarrington Farm141219
4.8 cm4 Jun 2014Swatfield Bridge Garden Centre141215
4.7 cm28 Apr 2026Swatfield Bridge Garden Centre182095
4.7 cm28 Apr 2026Swatfield Bridge Garden Centre182095

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 surveyedFirst recordedLast recordedVisits finding 3-spined stickleback
Swatfield Bridge Garden Centre4 Jun 201428 Apr 20263
Quarrington Farm11 Jun 20148 May 20252

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

2014–2026

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 23 measured fish were spread across different length ranges.

Smallest
3.4 cm
Lower quarter
4.3 cm
Median
4.7 cm
Upper quarter
5.1 cm
Largest
6.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 →