RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Heacham

Largest measured 3-spined stickleback: 7.1 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Heacham was 7.1 cm, recorded at DS Heacham Weir on 26 May 2015.

Across 224 measured 3-spined stickleback, the median measured length was 4.7 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 Heacham.

See 3-spined stickleback records across England →

Most recent observation9 February 2017Norfolk Lavender Mill · 1 fish
Largest measured 3-spined stickleback
7.1 cm
Median length
4.7 cm
Fish measured
224
Survey locations
8

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
7.1 cm26 May 2015DS Heacham Weir144785
7 cm17 Apr 2014Sedgeford Carr140657
6.8 cm15 Apr 1996North Beach30325
6.8 cm23 Jan 1992North Beach30322
6.7 cm17 Apr 2014Sedgeford Carr140657
6.7 cm17 Apr 2014US B1454 Road Bridge140656
6.6 cm14 Apr 2016Sedgeford Carr147941
6.5 cm15 Mar 2011US B1454 Road Bridge125981
6.4 cm14 Apr 2016Sedgeford Carr147941
6.4 cm17 Apr 2015Sedgeford Carr144561

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
Norfolk Lavender Mill17 Apr 19969 Feb 20174
US B1454 Road Bridge15 Mar 201114 Apr 20165
Sedgeford Carr4 Apr 201314 Apr 20164
DS Heacham Weir26 May 201526 May 20151
DS Heacham Weir (Eel Monitoring)19 May 200810 Jun 20143
Eaton Farm23 Sept 200823 Sept 20081
North Beach23 Jan 199215 Apr 19962
Heacham Manor30 Jan 199230 Jan 19921

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

1992–2017

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 224 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
4 cm
Median
4.7 cm
Upper quarter
5.3 cm
Largest
7.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Heacham

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

European eel Brown / sea trout Flounder

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 →