RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Darent

Largest measured 3-spined stickleback: 6.6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Darent was 6.6 cm, recorded at Quebec House Car Park Westerham on 28 April 2022.

Across 98 measured 3-spined stickleback, the median measured length was 3.3 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 Darent.

See 3-spined stickleback records across England →

Most recent observation11 June 2026Preston Farm · 1 fish
Largest measured 3-spined stickleback
6.6 cm
Median length
3.3 cm
Fish measured
98
Survey locations
5

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
6.6 cm28 Apr 2022Quebec House Car Park Westerham160932
6.2 cm22 Aug 2006Westerham103356
6.2 cm22 Aug 2006Westerham103356
6.1 cm22 Aug 2006Westerham103356
6.1 cm22 Aug 2006Westerham103356
6 cm28 Apr 2022Quebec House Car Park Westerham160932
5.8 cm28 Apr 2022Quebec House Car Park Westerham160932
5.8 cm28 Apr 2022Quebec House Car Park Westerham160932
5.7 cm22 Aug 2006Westerham103356
5.5 cm2 Jun 2017Sundridge150494

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
Preston Farm11 Aug 200411 Jun 20266
Sundridge21 Jun 20113 May 20223
Quebec House Car Park Westerham21 Jun 201128 Apr 20222
Park Farm22 Sept 201122 Sept 20111
Westerham22 Aug 200622 Aug 20061

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

2004–2026

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 98 measured fish were spread across different length ranges.

Smallest
1.7 cm
Lower quarter
2.7 cm
Median
3.3 cm
Upper quarter
4.2 cm
Largest
6.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Darent

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

Gudgeon Bullhead Roach Perch Brown / sea trout Stone loach

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 →