RiverFish

3-spined stickleback · Gasterosteus aculeatus

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

Largest measured 3-spined stickleback: 6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Chad Brook (Main Reaches) was 6 cm, recorded at Melford FGS on 24 July 2024.

Across 80 measured 3-spined stickleback, the median measured length was 4.2 cm.

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

See 3-spined stickleback records across England →

Most recent observation2 July 2026Broad Meadows · 1 fish
Largest measured 3-spined stickleback
6 cm
Median length
4.2 cm
Fish measured
80
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
6 cm24 Jul 2024Melford FGS167833
5.5 cm2 Jun 2010Broad Meadows121779
5.3 cm12 Jul 2012Village Hall132651
5.2 cm25 May 2000Broad Meadows15504
5.1 cm2 Jul 2026Broad Meadows182034
5 cm24 Jul 2024Melford FGS167833
5 cm10 Jul 2012Broad Meadows132647
5 cm10 Jul 2012Broad Meadows132647
4.9 cm24 Jul 2024Melford FGS167833
4.8 cm24 Jul 2024Melford FGS167833

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
Broad Meadows29 May 19972 Jul 202610
Melford FGS6 Jun 200624 Jul 20243
Village Hall26 May 200012 Jul 20122

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

1997–2026

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 80 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
3.5 cm
Median
4.2 cm
Upper quarter
4.5 cm
Largest
6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Chad Brook (Main Reaches)

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

Pike Dace Roach Perch Bullhead 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 →