RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Old Windsor

Largest measured minnow: 7 cm

The largest minnow measured in Environment Agency surveys of the River Old Windsor was 7 cm, recorded at Old Windsor Downstream Fry on 20 September 2006.

Across 2,067 measured minnow, the median measured length was 3 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 Old Windsor.

See minnow records across England →

Most recent observation3 September 2025Old Windsor Upstream Fry · 382 fish
Largest measured minnow
7 cm
Median length
3 cm
Fish measured
2,067
Survey locations
2

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
7 cm20 Sept 2006Old Windsor Downstream Fry111934
6.2 cm20 Sept 2006Old Windsor Downstream Fry111934
5.6 cm24 Aug 2011Old Windsor Upstream Fry130089
5.6 cm20 Aug 2008Old Windsor Upstream Fry125708
5.5 cm21 Aug 2012Old Windsor Downstream Fry135279
5.5 cm24 Aug 2011Old Windsor Downstream Fry130088
5.3 cm24 Aug 2011Old Windsor Downstream Fry130088
5.2 cm20 Sept 2006Old Windsor Downstream Fry111934
5 cm3 Sept 2025Old Windsor Downstream Fry178526
5 cm21 Aug 2012Old Windsor Downstream Fry135279

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
Old Windsor Upstream Fry9 Sept 20043 Sept 202515
Old Windsor Downstream Fry9 Sept 20043 Sept 202515

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

2004–2025

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 2,067 measured fish were spread across different length ranges.

Smallest
1.1 cm
Lower quarter
2.5 cm
Median
3 cm
Upper quarter
3.5 cm
Largest
7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Old Windsor

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

Dace Gudgeon Chub Roach Bleak 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 →