RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Gransmoor Beck

Largest measured 3-spined stickleback: 5.4 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Gransmoor Beck was 5.4 cm, recorded at d/s Quarry on 30 September 2011.

Across 57 measured 3-spined stickleback, the median measured length was 2.6 cm.

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

See 3-spined stickleback records across England →

Most recent observation11 October 2016d/s Quarry · 6 fish
Largest measured 3-spined stickleback
5.4 cm
Median length
2.6 cm
Fish measured
57
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
5.4 cm30 Sept 2011d/s Quarry128881
4.5 cm11 Oct 2005d/s Quarry87790
4.2 cm30 Sept 2011d/s Quarry128881
4 cm11 Oct 2005d/s Quarry87790
4 cm11 Oct 2005d/s Quarry87790
3.9 cm30 Sept 2011d/s Quarry128881
3.7 cm11 Oct 2016d/s Quarry149769
3.7 cm30 Sept 2011d/s Quarry128881
3.6 cm11 Oct 2005d/s Quarry87790
3.5 cm11 Oct 2016d/s Quarry149769

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
d/s Quarry11 Oct 200511 Oct 20164
Upstream Quarry19 Oct 201219 Oct 20121
Gransmoor Bridge19 Oct 201219 Oct 20121

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

2005–2016

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 57 measured fish were spread across different length ranges.

Smallest
1.4 cm
Lower quarter
2.1 cm
Median
2.6 cm
Upper quarter
3.3 cm
Largest
5.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 →