RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Sandon Brook (Main Reaches)

Largest measured 3-spined stickleback: 5.6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Sandon Brook (Main Reaches) was 5.6 cm, recorded at Graces Walk on 22 May 1998.

Across 11 measured 3-spined stickleback, the median measured length was 4.4 cm.

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

See 3-spined stickleback records across England →

Most recent observation8 May 2025Graces Walk · 3 fish
Largest measured 3-spined stickleback
5.6 cm
Median length
4.4 cm
Fish measured
11
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.

LengthSurvey dateSurvey locationSurvey ID
5.6 cm22 May 1998Graces Walk14500
5 cm29 May 2019Graces Walk155997
5 cm22 May 1998Graces Walk14500
4.7 cm8 May 2025Graces Walk177233
4.5 cm29 May 2019Graces Walk155997
4.4 cm8 May 2025Graces Walk177233
4.4 cm8 May 2025Graces Walk177233
4.3 cm22 May 1998Graces Walk14500
4.1 cm10 May 2013Graces Walk137520
4.1 cm31 May 2001Graces Walk15599

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
Graces Walk22 May 19988 May 20255

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

1998–2025

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 11 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
4.2 cm
Median
4.4 cm
Upper quarter
4.9 cm
Largest
5.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Sandon Brook (Main Reaches)

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

Chub European eel Roach Dace Pike 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 →