RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Alham

Largest measured 3-spined stickleback: 6.9 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Alham was 6.9 cm, recorded at Alford House on 22 August 1990.

Across 44 measured 3-spined stickleback, the median measured length was 3.6 cm.

Surveyors recorded weights for 24 3-spined stickleback. The median was 0.1 oz (0.002 kg) and the largest recorded weight was 0.1 oz (0.003 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 Alham.

See 3-spined stickleback records across England →

Most recent observation8 August 2012Milton Bridge, Evercreech (Se-04) · 1 fish
Largest measured 3-spined stickleback
6.9 cm
Median length
3.6 cm
Fish measured
44
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
6.9 cm22 Aug 1990Alford House82648
6.5 cm8 Aug 1990Milton Bridge, Evercreech (Se-04)82640
6.4 cm22 Aug 1990Alford House82648
6 cm22 Aug 1990Alford House82648
5.8 cm22 Aug 1990Alford House82648
5.8 cm8 Aug 1990Milton Bridge, Evercreech (Se-04)82640
5.7 cm22 Aug 1990Alford House82648
5.4 cm8 Aug 1990Milton Bridge, Evercreech (Se-04)82640
5.3 cm21 Aug 1990Easton Trow Bridge82646
5.2 cm22 Aug 1990Alford House82648

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
Milton Bridge, Evercreech (Se-04)8 Aug 19908 Aug 20123
Alford House22 Aug 199022 Aug 19901
Easton Trow Bridge21 Aug 199021 Aug 19901
Snagg Farm16 Aug 199016 Aug 19901
Redlands Farm16 Aug 199016 Aug 19901
Higher Alham8 Aug 19908 Aug 19901

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

1990–2012

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 44 measured fish were spread across different length ranges.

Smallest
2.5 cm
Lower quarter
3.2 cm
Median
3.7 cm
Upper quarter
5.2 cm
Largest
6.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 24 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
0.1 oz (0.002 kg)
Upper quarter
0.1 oz (0.002 kg)
Heaviest
0.1 oz (0.003 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 Alham

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

Brown / sea trout Stone loach Bullhead

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 →