RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Hayle

Largest measured 3-spined stickleback: 6 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Hayle was 6 cm, recorded at River Valley on 29 September 1977.

Across 21 measured 3-spined stickleback, the median measured length was 3.3 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 Hayle.

See 3-spined stickleback records across England →

Most recent observation4 September 2003St Erth
Largest measured 3-spined stickleback
6 cm
Median length
3.3 cm
Fish measured
21
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
6 cm29 Sept 1977River Valley120881
5 cm29 Sept 1977River Valley120881
4.1 cm30 Sept 1977u/s Binnerton Adit120876
4.1 cm30 Sept 1977u/s Binnerton Adit120876
3.9 cm30 Sept 1977u/s Binnerton Adit120876
3.8 cm30 Sept 1977u/s Binnerton Adit120876
3.7 cm30 Sept 1977u/s Binnerton Adit120876
3.5 cm30 Sept 1977u/s Binnerton Adit120876
3.4 cm30 Sept 1977u/s Binnerton Adit120876
3.4 cm30 Sept 1977u/s Binnerton Adit120876

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
St Erth29 Aug 20024 Sept 20032
u/s Binnerton Adit30 Sept 197730 Sept 19771
River Valley29 Sept 197729 Sept 19771

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

1977–2003

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 21 measured fish were spread across different length ranges.

Smallest
2.6 cm
Lower quarter
3.1 cm
Median
3.3 cm
Upper quarter
3.8 cm
Largest
6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hayle

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

Brown / sea trout European eel

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 →