RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Hiz

Largest measured 3-spined stickleback: 8.2 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Hiz was 8.2 cm, recorded at DS Hitchin Recreation Ground on 30 March 2015.

Across 25 measured 3-spined stickleback, the median measured length was 5.3 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 Hiz.

See 3-spined stickleback records across England →

Most recent observation18 September 2019Ickleford Common · 4 fish
Largest measured 3-spined stickleback
8.2 cm
Median length
5.3 cm
Fish measured
25
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.

LengthSurvey dateSurvey locationSurvey ID
8.2 cm30 Mar 2015DS Hitchin Recreation Ground144470
7.4 cm30 Mar 2015DS Hitchin Recreation Ground144470
6.9 cm30 Mar 2015DS Hitchin Recreation Ground144470
6.3 cm30 Mar 2015DS Hitchin Recreation Ground144470
6.3 cm30 Mar 2015DS Hitchin Recreation Ground144470
6.2 cm30 Mar 2015DS Hitchin Recreation Ground144470
6.2 cm30 Mar 2015DS Hitchin Recreation Ground144470
6.1 cm30 Mar 2015DS Hitchin Recreation Ground144470
5.8 cm25 May 1998Arlesey Garden29285
5.7 cm30 Mar 2015DS Hitchin Recreation Ground144470

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
Ickleford Common18 Sept 201918 Sept 20191
Amenity Trees Arlesey6 Mar 201325 May 20162
DS Hitchin Recreation Ground2 Dec 200930 Mar 20152
Hitchin Recreation Ground2 Dec 20092 Dec 20091
Hitchin Allotments2 Dec 20092 Dec 20091
Arlesey Garden25 May 199825 May 19981

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

1998–2019

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 25 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
4.3 cm
Median
5.3 cm
Upper quarter
6.2 cm
Largest
8.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hiz

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

Bullhead Pike Stone loach Minnow Gudgeon 10-spined stickleback

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 →