3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Blyth (Main Reaches)

Largest measured 3-spined stickleback: 6.2 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Blyth (Main Reaches) was 6.2 cm, recorded at Mells Bridge on 11 July 1991.

Across 98 measured 3-spined stickleback, the median measured length was 4.2 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 Blyth (Main Reaches).

See 3-spined stickleback records across England →

Most recent observation1 August 2016Red House Farm · 8 fish

Largest measured 3-spined stickleback: 6.2 cm
Median length: 4.2 cm
Fish measured: 98
Survey locations: 6

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
6.2 cm	11 Jul 1991	Mells Bridge	4015
6.2 cm	11 Jul 1991	Mells Bridge	4015
6 cm	3 Jul 1991	Red House Farm	4014
6 cm	17 Nov 1987	Downstream Cookley Bridge	4009
5.9 cm	3 Jul 1991	Red House Farm	4014
5.6 cm	4 Jul 1991	Downstream A144 Bridge	4013
5.6 cm	3 Jul 1991	Red House Farm	4014
5.5 cm	3 Jul 1991	Red House Farm	4014
5.4 cm	3 Jul 1991	Red House Farm	4014
5.2 cm	7 May 2010	Mells Bridge	121487

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
Red House Farm	23 Nov 1987	1 Aug 2016	5
Mells Bridge	24 Nov 1987	7 Jun 2016	5
Blyford Sluice	12 Sept 2001	12 Sept 2001	1
Downstream A144 Bridge	18 Nov 1987	17 May 1995	3
Water Mill House	22 Jul 1991	22 Jul 1991	1
Downstream Cookley Bridge	17 Nov 1987	17 Nov 1987	1

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

1987–2016

Survey records by year

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

487

088

089

090

491

092

093

094

195

096

097

098

099

000

301

002

003

004

005

006

007

008

009

210

011

012

013

014

015

216

Fish measured by surveyors

Measured length distribution

See how the 98 measured fish were spread across different length ranges.

Smallest: 1.6 cm
Lower quarter: 3.1 cm
Median: 4.2 cm
Upper quarter: 4.8 cm
Largest: 6.2 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blyth (Main Reaches)

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

European eel Stone loach Dace Roach 10-spined stickleback Rudd

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 →