RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River LillyBrook

Largest measured 3-spined stickleback: 5.8 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River LillyBrook was 5.8 cm, recorded at Lillybrook (Sp) on 18 June 2026.

Across 7 measured 3-spined stickleback, the median measured length was 5.2 cm.

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

See 3-spined stickleback records across England →

Most recent observation18 June 2026Lillybrook (Sp) · 7 fish
Largest measured 3-spined stickleback
5.8 cm
Median length
5.2 cm
Fish measured
7
Survey locations
3

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
5.8 cm18 Jun 2026Lillybrook (Sp)181835
5.6 cm18 Jun 2026Lillybrook (Sp)181835
5.2 cm18 Jun 2026Lillybrook (Sp)181835
5.2 cm18 Jun 2026Lillybrook (Sp)181835
4.8 cm18 Jun 2026Lillybrook (Sp)181835
2.5 cm18 Jun 2026Lillybrook (Sp)181835
2 cm18 Jun 2026Lillybrook (Sp)181835

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
Lillybrook (Sp)27 Jun 202318 Jun 20262
Upstream Tedburn STW*7 Aug 20127 Aug 20121
Downstream Tedburn STW*7 Aug 20127 Aug 20121

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

2012–2026

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 7 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
3.7 cm
Median
5.2 cm
Upper quarter
5.4 cm
Largest
5.8 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 →