RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Brett (Main Reaches)

Largest measured 3-spined stickleback: 6.9 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Brett (Main Reaches) was 6.9 cm, recorded at Higham FGS on 3 May 2024.

Across 300 measured 3-spined stickleback, the median measured length was 3.8 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 Brett (Main Reaches).

See 3-spined stickleback records across England →

Most recent observation3 May 2024Higham FGS · 6 fish
Largest measured 3-spined stickleback
6.9 cm
Median length
3.8 cm
Fish measured
300
Survey locations
9

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
6.9 cm3 May 2024Higham FGS165726
6.3 cm25 Sept 2013Peyton Hall140035
5.9 cm11 Apr 2012Cobbolds Mill131036
5.6 cm19 Apr 2006Cobbolds Mill90661
5.5 cm15 May 2012Higham FGS132283
5.5 cm20 Mar 1985Cobbolds Mill13724
5.3 cm15 May 2012Higham FGS132283
5.2 cm20 Mar 1985Cobbolds Mill13724
5.1 cm11 Apr 2012Cobbolds Mill131036
5.1 cm11 Apr 2012Cobbolds Mill131036

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
Higham FGS4 Apr 20063 May 20248
Hadleigh Town7 Apr 200626 Apr 20244
Chelsworth13 Apr 200626 Apr 20183
Waterhouse Farm11 Apr 201425 Apr 20183
Cobbolds Mill20 Mar 198516 Apr 20185
Hadleigh STW6 Apr 200630 Sept 20132
Peyton Hall23 Apr 199725 Sept 20133
Cosford Bridge18 Apr 201218 Apr 20121
Cherry Hill3 Apr 200020 Apr 20062

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

1985–2024

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 300 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
3.4 cm
Median
3.8 cm
Upper quarter
4.2 cm
Largest
6.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Brett (Main Reaches)

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

European eel Pike Roach Gudgeon Dace Perch

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 →