RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Wensum (upper)

Largest measured minnow: 9.4 cm

The largest minnow measured in Environment Agency surveys of the River Wensum (upper) was 9.4 cm, recorded at Upstream Fakenham Mill on 18 May 2023.

Across 1,024 measured minnow, the median measured length was 5.5 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 (upper).

See minnow records across England →

Most recent observation2 September 2025Upstream Fakenham Mill · 97 fish
Largest measured minnow
9.4 cm
Median length
5.5 cm
Fish measured
1,024
Survey locations
7

Individual EA measurements

Largest measured minnow

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

LengthSurvey dateSurvey locationSurvey ID
9.4 cm18 May 2023Upstream Fakenham Mill162643
9.2 cm11 Sept 2003Fakenham Common77264
9 cm11 Sept 2003Fakenham Common77264
8.9 cm10 Mar 2022Upstream Broomsthorpe Bridge160989
8.6 cm11 Sept 2003Fakenham Common77264
8.5 cm25 Apr 2025South Mill Farm177100
8.5 cm16 Oct 2012Fakenham Common134360
8.5 cm11 Sept 2003Fakenham Common77264
8.4 cm3 May 2024Upstream Sculthorpe Mill166210
8.2 cm14 Oct 2009Fakenham Common119378

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

Explore the river

Where minnow were found

Each point marks a survey location with at least one minnow 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 minnow
Upstream Fakenham Mill25 Apr 20172 Sept 20257
South Mill Farm21 May 201825 Apr 20253
Tatterford Common22 Apr 202522 Apr 20251
Upstream Broomsthorpe Bridge10 Mar 202215 Apr 20253
Hellhoughton Common18 Apr 202310 Apr 20252
Upstream Sculthorpe Mill3 May 20243 May 20241
Fakenham Common2 Jul 199014 Jun 20189

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

1990–2025

Survey records by year

Each bar shows how many survey visits recorded minnow that year.

Fish measured by surveyors

Measured length distribution

See how the 1,024 measured fish were spread across different length ranges.

Smallest
2.5 cm
Lower quarter
4.7 cm
Median
5.5 cm
Upper quarter
6.2 cm
Largest
9.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wensum (upper)

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

Brown / sea trout Stone loach Bullhead European eel 3-spined stickleback Brook lamprey

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 →