RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Blackwater (Yare)

Largest measured 3-spined stickleback: 7.4 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Blackwater (Yare) was 7.4 cm, recorded at Cranworth, Gurdon Plantation bridleway on 9 January 2012.

Across 328 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 Blackwater (Yare).

See 3-spined stickleback records across England →

Most recent observation2 February 2012Garvestone, Tanners Lane Ford · 54 fish
Largest measured 3-spined stickleback
7.4 cm
Median length
3.5 cm
Fish measured
328
Survey locations
7

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.

LengthSurvey dateSurvey locationSurvey ID
7.4 cm9 Jan 2012Cranworth, Gurdon Plantation bridleway130099
6 cm2 Feb 2012Garvestone, Tanners Lane Ford130118
6 cm23 Nov 2006Garvestone, Tanners Lane Ford103276
5.9 cm11 Jan 2012Thuxton, d/s Railway Bridge130106
5.8 cm2 Feb 2012Garvestone, Tanners Lane Ford130118
5.8 cm2 Feb 2012Garvestone, Tanners Lane Ford130118
5.6 cm2 Feb 2012Garvestone, Tanners Lane Ford130118
5.4 cm2 Feb 2012Garvestone, Tanners Lane Ford130118
5.4 cm11 Jan 2012Southburgh, d/s White Bridge130098
5.3 cm2 Feb 2012Garvestone, Tanners Lane Ford130118

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 surveyedFirst recordedLast recordedVisits finding 3-spined stickleback
Garvestone, Tanners Lane Ford23 Nov 20062 Feb 20122
Reymerston, Bridge Farm27 Nov 200613 Jan 20122
Thuxton, d/s Railway Bridge1 Dec 200611 Jan 20122
Southburgh, d/s White Bridge28 Nov 200611 Jan 20122
Shipdham, Hall Farm24 Nov 20069 Jan 20122
Cranworth, Gurdon Plantation bridleway27 Nov 20069 Jan 20122
Cranworth, Lodge Plantation24 Nov 200624 Nov 20061

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

2006–2012

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 328 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
3 cm
Median
3.5 cm
Upper quarter
4 cm
Largest
7.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blackwater (Yare)

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

Bullhead Stone loach 10-spined stickleback Dace

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 →