RiverFish

10-spined stickleback · Pungitius pungitius

10-spined stickleback in the River Wensum (Restoration strategy)

Largest measured 10-spined stickleback: 4.7 cm

The largest 10-spined stickleback measured in Environment Agency surveys of the River Wensum (Restoration strategy) was 4.7 cm, recorded at Upstream Dunton Bridge on 1 May 2025.

Across 8 measured 10-spined stickleback, the median measured length was 3.9 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 Wensum (Restoration strategy).

See 10-spined stickleback records across England →

Most recent observation1 May 2025Upstream Dunton Bridge · 1 fish
Largest measured 10-spined stickleback
4.7 cm
Median length
3.9 cm
Fish measured
8
Survey locations
3

Individual EA measurements

Largest measured 10-spined stickleback

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
4.7 cm1 May 2025Upstream Dunton Bridge177101
4.5 cm1 Sept 2011Gt. Ryburgh Common, New loop (Reach24)128076
4.4 cm6 Apr 2017Upstream Dunton Bridge150364
4 cm1 Sept 2011Gt. Ryburgh Common, New loop (Reach24)128076
3.8 cm21 Sept 2012Gt Ryburgh End - Downstream confluence to iron bridge133845
2.8 cm1 Sept 2011Gt. Ryburgh Common, New loop (Reach24)128076
2.5 cm1 Sept 2011Gt. Ryburgh Common, New loop (Reach24)128076
2 cm1 Sept 2011Gt. Ryburgh Common, New loop (Reach24)128076

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where 10-spined stickleback were found

Each point marks a survey location with at least one 10-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 10-spined stickleback
Upstream Dunton Bridge6 Apr 20171 May 20252
Gt Ryburgh End - Downstream confluence to iron bridge21 Sept 201221 Sept 20121
Gt. Ryburgh Common, New loop (Reach24)1 Sept 20111 Sept 20111

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

2011–2025

Survey records by year

Each bar shows how many survey visits recorded 10-spined stickleback that year.

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
2.7 cm
Median
3.9 cm
Upper quarter
4.4 cm
Largest
4.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wensum (Restoration strategy)

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

Minnow Bullhead Dace Stone loach Gudgeon 3-spined stickleback

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 →