3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the Black Ditch

Largest measured 3-spined stickleback: 5.8 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the Black Ditch was 5.8 cm, recorded at Lyminster sq on 5 September 2005.

Across 54 measured 3-spined stickleback, the median measured length was 3.9 cm.

Surveyors recorded weights for 54 3-spined stickleback. The median was 0 oz (0.001 kg) and the largest recorded weight was 0.1 oz (0.002 kg).

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

See 3-spined stickleback records across England →

Most recent observation28 August 2018Ham Manor Golf Club · 4 fish

Largest measured 3-spined stickleback: 5.8 cm
Median length: 3.9 cm
Fish measured: 54
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.

Length	Survey date	Survey location	Survey ID
5.8 cm	5 Sept 2005	Lyminster sq	86936
5.6 cm	5 Sept 2005	Lyminster sq	86936
4.7 cm	5 Sept 2005	Lyminster sq	86936
4.6 cm	5 Sept 2005	Lyminster sq	86936
4.4 cm	5 Sept 2005	Poling sq	86948
4.4 cm	5 Sept 2005	Lyminster sq	86936
4.4 cm	5 Sept 2005	Lyminster sq	86936
4.4 cm	5 Sept 2005	Lyminster sq	86936
4.3 cm	5 Sept 2005	Lyminster sq	86936
4.3 cm	5 Sept 2005	Lyminster sq	86936

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 surveyed	First recorded	Last recorded	Visits finding 3-spined stickleback
Ham Manor Golf Club	24 Aug 2012	28 Aug 2018	2
Poling sq	5 Sept 2005	5 Sept 2005	1
Lyminster sq	5 Sept 2005	5 Sept 2005	1

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

2005–2018

Survey records by year

Each bar shows how many survey visits recorded 3-spined stickleback that year.

205

006

007

008

009

010

011

112

013

014

015

016

017

118

Fish measured by surveyors

Measured length distribution

See how the 54 measured fish were spread across different length ranges.

Smallest: 3.6 cm
Lower quarter: 3.7 cm
Median: 3.9 cm
Upper quarter: 4.1 cm
Largest: 5.8 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 54 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: 0.1 oz (0.002 kg)

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

More fish in this river

Explore the Black Ditch

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

European eel Pike

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 →