3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River R.Slea

Largest measured 3-spined stickleback: 8.5 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River R.Slea was 8.5 cm, recorded at Bypass Bridge on 5 April 2007.

Across 177 measured 3-spined stickleback, the median measured length was 5.1 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 R.Slea.

See 3-spined stickleback records across England →

Most recent observation19 October 2023Bypass Bridge

Largest measured 3-spined stickleback: 8.5 cm
Median length: 5.1 cm
Fish measured: 177
Survey locations: 12

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
8.5 cm	5 Apr 2007	Bypass Bridge	105080
8 cm	18 Apr 1988	Terry Booths Farm	53159
8 cm	18 Apr 1988	Terry Booths Farm	53159
7.2 cm	21 Apr 1988	Between Halfpenny and Cobblers Lock	53190
7.2 cm	18 Apr 1988	Terry Booths Farm	53159
7.1 cm	14 Apr 2005	Bouncing Hills	84392
7 cm	21 Mar 1994	Ancaster	53332
6.9 cm	21 Apr 1988	Between Halfpenny and Cobblers Lock	53190
6.7 cm	21 Apr 1988	Between Halfpenny and Cobblers Lock	53190
6.6 cm	7 Apr 2010	Bypass Bridge	121537

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
Bypass Bridge	5 Jun 1985	19 Oct 2023	9
Upstream Cogglesford Mill	11 Oct 2018	11 Oct 2018	1
Chapel Hill (Kyme)	18 Oct 2013	18 Oct 2013	1
Halfpenny Hatch	31 May 1985	1 Oct 2013	5
Cobblers Lock	15 Apr 2008	15 Apr 2008	1
Bouncing Hills	21 Mar 1994	14 Apr 2005	2
White House	2 Jul 1997	2 Jul 1997	1
Ancaster	21 Mar 1994	21 Mar 1994	1
Wilsford Gauge Station	18 Mar 1994	18 Mar 1994	1
Between Halfpenny and Cobblers Lock	21 Apr 1988	21 Apr 1988	1
Manor Farm	30 May 1985	19 Apr 1988	2
Terry Booths Farm	14 May 1985	18 Apr 1988	2

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

1985–2023

Survey records by year

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

485

086

087

488

089

090

091

092

093

394

095

096

197

098

099

000

001

002

003

004

205

006

107

208

209

110

011

112

313

114

015

016

017

118

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 177 measured fish were spread across different length ranges.

Smallest: 2.1 cm
Lower quarter: 4.6 cm
Median: 5.1 cm
Upper quarter: 5.5 cm
Largest: 8.5 cm

0–99 mm

177

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River R.Slea

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

European eel Roach Gudgeon Dace Stone loach Pike

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 →