RiverFish

3-spined stickleback · Gasterosteus aculeatus

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

Largest measured 3-spined stickleback: 6.9 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Alde (Main Reaches) was 6.9 cm, recorded at Upstream Langham Bridge on 19 June 1995.

Across 77 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 River Alde (Main Reaches).

See 3-spined stickleback records across England →

Most recent observation14 May 2024Upstream Farnham Bridge · 1 fish
Largest measured 3-spined stickleback
6.9 cm
Median length
4.2 cm
Fish measured
77
Survey locations
4

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 cm19 Jun 1995Upstream Langham Bridge4051
6.3 cm13 Jun 1991Upstream Farnham Bridge4038
5.6 cm14 May 2024Upstream Farnham Bridge166559
5.1 cm26 Mar 2003Upstream Farnham Bridge79273
5 cm9 May 2024Upstream Langham Bridge166558
4.8 cm4 Jul 2016Upstream Langham Bridge148819
4.8 cm14 Jul 2010Upstream Langham Bridge122774
4.8 cm13 Jun 1991Upstream Farnham Bridge4038
4.8 cm13 Jun 1991Downstream Benhall Place4037
4.7 cm26 Jul 2010Upstream Farnham Bridge123075

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
Upstream Farnham Bridge3 Nov 198714 May 20246
Upstream Langham Bridge19 Jun 19959 May 20245
Downstream Benhall Place2 Nov 198713 Jun 19912
Upstream Blaxhall Railway Bridge5 Nov 19875 Nov 19871

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

1987–2024

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 77 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
3.9 cm
Median
4.2 cm
Upper quarter
4.5 cm
Largest
6.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Alde (Main Reaches)

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

European eel Dace Roach Stone loach Flounder Chub

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 →