3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Leeshaw Beck

Largest measured 3-spined stickleback: 6.1 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Leeshaw Beck was 6.1 cm, recorded at Downstream Leeshaw Res (WR) on 21 September 2004.

Across 9 measured 3-spined stickleback, the median measured length was 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 Leeshaw Beck.

See 3-spined stickleback records across England →

Most recent observation5 August 2024Downstream Leeshaw Res (WR)

Largest measured 3-spined stickleback: 6.1 cm
Median length: 5 cm
Fish measured: 9
Survey locations: 1

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
6.1 cm	21 Sept 2004	Downstream Leeshaw Res (WR)	84346
5.5 cm	25 Jul 2007	Downstream Leeshaw Res (WR)	108145
5.4 cm	21 Sept 2004	Downstream Leeshaw Res (WR)	84346
5 cm	18 Sept 2018	Downstream Leeshaw Res (WR)	153821
5 cm	18 Sept 2018	Downstream Leeshaw Res (WR)	153821
4.8 cm	21 Sept 2004	Downstream Leeshaw Res (WR)	84346
4.4 cm	25 Jul 2007	Downstream Leeshaw Res (WR)	108145
3.8 cm	19 Oct 2005	Downstream Leeshaw Res (WR)	103244
3 cm	19 Oct 2005	Downstream Leeshaw Res (WR)	103244

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
Downstream Leeshaw Res (WR)	5 Sept 2002	5 Aug 2024	7

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

2002–2024

Survey records by year

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

102

003

104

105

006

107

108

009

010

011

012

013

014

015

016

017

118

019

020

021

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 9 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 4.4 cm
Median: 5 cm
Upper quarter: 5.4 cm
Largest: 6.1 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Leeshaw Beck

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

Brown / sea trout

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 →