3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Asheldham Brook

Largest measured 3-spined stickleback: 4.8 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Asheldham Brook was 4.8 cm, recorded at Bovills Marsh on 6 October 1986.

Across 7 measured 3-spined stickleback, the median measured length was 4.3 cm.

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

See 3-spined stickleback records across England →

Most recent observation16 February 1999Bovills Marsh · 1 fish

Largest measured 3-spined stickleback: 4.8 cm
Median length: 4.3 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.

Length	Survey date	Survey location	Survey ID
4.8 cm	6 Oct 1986	Bovills Marsh	14580
4.4 cm	5 Dec 1989	Brook Farm	14583
4.3 cm	6 Oct 1986	Bovills Marsh	14580
4.3 cm	6 Oct 1986	Bovills Marsh	14580
4.1 cm	3 Oct 1986	Round Barn Farm	14578
3.8 cm	6 Oct 1986	Bovills Marsh	14580
3.5 cm	16 Feb 1999	Bovills Marsh	14595

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 surveyed	First recorded	Last recorded	Visits finding 3-spined stickleback
Bovills Marsh	6 Oct 1986	16 Feb 1999	2
Brook Farm	5 Dec 1989	5 Dec 1989	1
Round Barn Farm	3 Oct 1986	3 Oct 1986	1

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

1986–1999

Survey records by year

Each bar shows how many survey visits recorded 3-spined stickleback that year.

286

087

088

189

090

091

092

093

094

095

096

097

098

199

Fish measured by surveyors

Measured length distribution

See how the 7 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 4 cm
Median: 4.3 cm
Upper quarter: 4.4 cm
Largest: 4.8 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Asheldham Brook

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

European eel Flounder Thick lipped grey mullet

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 →