RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Hartlake

Largest measured 3-spined stickleback: 4.5 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Hartlake was 4.5 cm, recorded at New Farm on 10 September 1991.

Across 66 measured 3-spined stickleback, the median measured length was 3.5 cm.

Surveyors recorded weights for 37 3-spined stickleback. The median was 0 oz (0.001 kg) and the largest recorded weight was 0 oz (0.001 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Hartlake.

See 3-spined stickleback records across England →

Most recent observation20 June 2012Upper Crannel Farm (Te) · 1 fish
Largest measured 3-spined stickleback
4.5 cm
Median length
3.5 cm
Fish measured
66
Survey locations
3

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
4.5 cm10 Sept 1991New Farm80441
4.4 cm10 Sept 1991New Farm80441
4.2 cm20 Jun 2012Upper Crannel Farm (Te)131590
4.2 cm10 Sept 1991New Farm80441
4.2 cm29 Aug 1991Hartlake Farm80440
4.1 cm10 Sept 1991New Farm80441
4.1 cm29 Aug 1991Hartlake Farm80440
4.1 cm29 Aug 1991Hartlake Farm80440
4 cm10 Sept 1991New Farm80441
4 cm10 Sept 1991New Farm80441

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
Upper Crannel Farm (Te)19 Sept 199120 Jun 20123
New Farm10 Sept 199110 Sept 19911
Hartlake Farm29 Aug 199129 Aug 19911

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

1991–2012

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 66 measured fish were spread across different length ranges.

Smallest
2.6 cm
Lower quarter
3.2 cm
Median
3.5 cm
Upper quarter
3.9 cm
Largest
4.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 37 3-spined stickleback. This is a subset of the measured fish and may not represent the whole population.

Lightest
0 oz (0.001 kg)
Lower quarter
0 oz (0.001 kg)
Median
0 oz (0.001 kg)
Upper quarter
0 oz (0.001 kg)
Heaviest
0 oz (0.001 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Hartlake

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

Gudgeon Chub European eel Stone loach

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 →