RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Mimram

Largest measured minnow: 7.4 cm

The largest minnow measured in Environment Agency surveys of the River Mimram was 7.4 cm, recorded at Cole Green Way Farm on 14 October 2003.

Across 18 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 Mimram.

See minnow records across England →

Most recent observation7 May 2026Chandlers End, Mill Farm
Largest measured minnow
7.4 cm
Median length
5.8 cm
Fish measured
18
Survey locations
15

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
7.4 cm14 Oct 2003Cole Green Way Farm77743
6.4 cm14 Oct 2003Cole Green Way Farm77743
6.3 cm14 Oct 2003Cole Green Way Farm77743
6.3 cm14 Oct 2003Cole Green Way Farm77743
6.3 cm14 Oct 2003Cole Green Way Farm77743
6.2 cm14 Oct 2003Cole Green Way Farm77743
6.1 cm14 Oct 2003Cole Green Way Farm77743
6 cm14 Oct 2003Cole Green Way Farm77743
5.8 cm14 Oct 2003Cole Green Way Farm77743
5.7 cm14 Oct 2003Cole Green Way Farm77743

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
Chandlers End, Mill Farm15 May 20087 May 20265
Tewin Flyfishers5 Apr 200725 Sept 202515
Panshanger quarry26 Apr 20072 Sept 202515
Upstream Tewin Fly Fishers3 Oct 20233 Oct 20242
Singlers Marsh8 Oct 201426 Sept 20242
Fulling Mill4 Apr 20234 Apr 20231
Tewin flyfishers middle8 Oct 201523 Sept 20193
Tewin Archers8 Oct 201523 Sept 20194
Panshanger quarry broadwater bypass channel22 Oct 201021 Sept 20112
Rose Farm13 Jul 200613 Jul 20061
Upstream Panshanger weir16 Jun 200616 Jun 20061
Codicote bottom farm14 Jun 200614 Jun 20061
u/s Tewin Bury farm13 Jun 200613 Jun 20061
School/corn mill13 Jun 200613 Jun 20061
Cole Green Way Farm14 Oct 200314 Oct 20031

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

2003–2026

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 18 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
5.1 cm
Median
5.8 cm
Upper quarter
6.3 cm
Largest
7.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mimram

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

Bullhead Brown / sea trout Stone loach 3-spined stickleback 10-spined stickleback Grayling

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 →