RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Mun catchment

Largest measured 3-spined stickleback: 5.9 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Mun catchment was 5.9 cm, recorded at Mundesley School Bridge on 27 February 2003.

Across 83 measured 3-spined stickleback, the median measured length was 4.6 cm.

Surveyors recorded weights for 38 3-spined stickleback. The median was 0 oz (0.0009 kg) and the largest recorded weight was 0.1 oz (0.0018 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 Mun catchment.

See 3-spined stickleback records across England →

Most recent observation31 March 2014Mundesley Mill chalet park · 16 fish
Largest measured 3-spined stickleback
5.9 cm
Median length
4.6 cm
Fish measured
83
Survey locations
5

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
5.9 cm27 Feb 2003Mundesley School Bridge100111
5.9 cm27 Feb 2003Mundesley School Bridge100111
5.8 cm27 Feb 2003Mundesley School Bridge100111
5.7 cm31 Mar 2014Mundesley Mill chalet park140786
5.7 cm8 Apr 2008Mundesley Mill chalet park111555
5.5 cm8 Apr 2008Mundesley Mill chalet park111555
5.5 cm8 Apr 2008Mundesley Mill chalet park111555
5.5 cm25 Feb 2003Mundesley Mill chalet park100112
5.4 cm27 Feb 2003Mundesley School Bridge100111
5.4 cm27 Feb 2003Mundesley School Bridge100111

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
Mundesley Mill chalet park25 Feb 200331 Mar 20144
Southrepps , The Grove8 Apr 200823 Jan 20122
Sidestrand , Frogshall bridge d/s27 Feb 200327 Feb 20031
Mundesley School Bridge27 Feb 200327 Feb 20031
Mundesley Lifeboat station u/s25 Feb 200325 Feb 20031

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

2003–2014

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 83 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
4 cm
Median
4.6 cm
Upper quarter
5 cm
Largest
5.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 38 3-spined stickleback. This is a subset of the measured fish and may not represent the whole population.

Lightest
0 oz (0.0002 kg)
Lower quarter
0 oz (0.0006 kg)
Median
0 oz (0.0009 kg)
Upper quarter
0 oz (0.0013 kg)
Heaviest
0.1 oz (0.0018 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 Mun catchment

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

Stone loach 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 →