RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Wensum (central)

Largest measured minnow: 9.9 cm

The largest minnow measured in Environment Agency surveys of the River Wensum (central) was 9.9 cm, recorded at U/s Billingford Rd Bridge on 7 September 2010.

Across 9,696 measured minnow, the median measured length was 5.2 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 (central).

See minnow records across England →

Most recent observation10 September 2025Swanton Morley · 110 fish
Largest measured minnow
9.9 cm
Median length
5.2 cm
Fish measured
9,696
Survey locations
29

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
9.9 cm7 Sept 2010U/s Billingford Rd Bridge123785
9.8 cm14 Aug 2013Hellesdon Road (Albert's)138564
9 cm23 Aug 2022Downstream Gt Ryburgh Bridge162000
9 cm2 Sept 2003Downstream Elsing Mill77007
8.8 cm29 Sept 2023Downstream Gt Ryburgh Bridge164292
8.7 cm23 Aug 2022Downstream Gt Ryburgh Bridge162000
8.7 cm11 Sept 2006Upstream Gt Ryburgh101844
8.6 cm1 Aug 2025Downstream Gt Ryburgh Bridge177853
8.6 cm14 Sept 2002Downstream Elsing Mill64660
8.5 cm17 Jul 2013Pensthorpe Hall137319

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
Swanton Morley23 Jun 198610 Sept 202521
Hellesdon Road (Albert's)4 Aug 199715 Aug 202522
Alders Spinney15 Aug 199014 Aug 202522
Downstream Elsing Mill23 Jun 19867 Aug 202525
Downstream Gt Ryburgh Bridge9 Jun 19861 Aug 202526
Sparham pool, Lyng26 Sept 20136 Sept 20246
County School18 Jun 198620 Aug 202411
Upstream Lenwade Mill1 Jul 198613 Aug 20249
Upstream Bintree Mill29 Sept 200323 Jul 20247
Pensthorpe Hall10 Jun 19867 Aug 20189
U/s Billingford Rd Bridge7 Sept 201028 Sept 20112
Blakes Meadow23 Aug 19909 Oct 20096
Upstream Drayton Green Lane30 Jul 19868 Oct 20097
Lyng Pits20 Jun 19861 Oct 20096
Downstream Ringland Bridge26 Jul 199430 Sept 20095
Upstream Gt Ryburgh9 Oct 200328 Sept 20093
Downstream Guist Bridge17 Jun 198624 Sept 20094
Attlebridge Hall Farm8 Jul 198623 Sept 20097
Downstream Billingford Bridge19 Jun 19864 Sept 200912
Walcis' Hill Meadow6 Oct 20036 Oct 20031
Downstream Attlebridge Bridge7 Jul 198622 Sept 20035
Costessey Pits14 Aug 199024 Jul 19973
Pinewood23 Jul 198617 Jul 19973
Downstream Point Costessey28 Jul 19869 Jul 19974
Downstream Broken Bridges29 Jul 19868 Jul 19974
Walcis Farm30 Jun 19866 Jun 19973
Swan Rescue13 Jul 19945 Jun 19972
Upstream Elsing Mill26 Jun 198613 May 19973
Sennowe Park25 May 199425 May 19941

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

1986–2025

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 9,696 measured fish were spread across different length ranges.

Smallest
1.6 cm
Lower quarter
4.5 cm
Median
5.2 cm
Upper quarter
5.8 cm
Largest
9.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wensum (central)

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

Pike Dace Roach European eel Perch Gudgeon

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 →