3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Gwash

Largest measured 3-spined stickleback: 3.5 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Gwash was 3.5 cm, recorded at Little Casterton on 10 March 1993.

Across 3 measured 3-spined stickleback, the median measured length was 3.5 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 Gwash.

See 3-spined stickleback records across England →

Most recent observation5 July 2023Church bridge - u/s Empingham

Largest measured 3-spined stickleback: 3.5 cm
Median length: 3.5 cm
Fish measured: 3
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.

Length	Survey date	Survey location	Survey ID
3.5 cm	10 Mar 1993	Little Casterton	54516
3.5 cm	9 Mar 1993	Church bridge - u/s Empingham	54510
3.5 cm	2 Mar 1993	Foundry Road	54518

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
Church bridge - u/s Empingham	9 Mar 1993	5 Jul 2023	6
Upstream White Post Bridge	16 Apr 2003	9 Oct 2017	3
Foundry Road	2 Mar 1993	16 Jun 2015	3
Little Casterton	10 Mar 1993	10 Mar 1993	1

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

1993–2023

Survey records by year

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

393

094

095

096

097

098

099

000

001

002

103

004

005

006

007

008

009

010

011

112

213

014

115

116

217

118

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 3 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 3.5 cm
Median: 3.5 cm
Upper quarter: 3.5 cm
Largest: 3.5 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Gwash

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

Brown / sea trout European eel Bullhead Grayling Dace Roach

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 →