RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Ash

Largest measured minnow: 9.3 cm

The largest minnow measured in Environment Agency surveys of the River Ash was 9.3 cm, recorded at Wareside Fully Quantitative on 22 October 2021.

Across 377 measured minnow, the median measured length was 5.8 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 Ash.

See minnow records across England →

Most recent observation18 September 2025Watersplace Farm
Largest measured minnow
9.3 cm
Median length
5.8 cm
Fish measured
377
Survey locations
12

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
9.3 cm22 Oct 2021Wareside Fully Quantitative160892
9.3 cm22 Oct 2021Wareside Fully Quantitative160892
9.1 cm22 Oct 2021Wareside Fully Quantitative160892
9.1 cm16 Oct 2007Watersplace Farm107896
8.5 cm16 Oct 2007Watersplace Farm107896
8.3 cm16 Oct 2007Watersplace Farm107896
8.2 cm4 Nov 2021Hollycross Road160898
8.2 cm16 Oct 2007Watersplace Farm107896
8.1 cm7 Jun 2005Blakesware estate enhancement downstream84766
8 cm29 Oct 2021Watersplace Farm160894

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
Watersplace Farm10 Oct 200318 Sept 202515
Wareside Fully Quantitative18 Sept 201718 Sept 20256
Hollycross Road22 Oct 200719 Sept 202312
Much Hadham Fully Quantitative9 Oct 20189 Oct 20181
Easeneye Weir Removal23 Oct 200723 Oct 20071
Much Hadham30 Jun 200630 Jun 20061
Upstream Blakeswere Widford29 Jun 200629 Jun 20061
Wareside28 Jun 200628 Jun 20061
Holly cross rd/water place farm22 Jun 200622 Jun 20061
Blakesware estate enhancement downstream7 Jun 20057 Jun 20051
u/s Ford Waterplace Farm19 Nov 200319 Nov 20031
Blakesware Estate13 Oct 200313 Oct 20031

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

2003–2025

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 377 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
4.1 cm
Median
5.8 cm
Upper quarter
6.5 cm
Largest
9.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ash

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

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

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 →