RiverFish

Minnow · Phoxinus phoxinus

Minnow in the River Main Fowey

Largest measured minnow: 9.8 cm

The largest minnow measured in Environment Agency surveys of the River Main Fowey was 9.8 cm, recorded at Palmersbridge on 16 July 2021.

Across 2,567 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 Main Fowey.

See minnow records across England →

Most recent observation10 July 2026Lower Langdon · 4 fish
Largest measured minnow
9.8 cm
Median length
5.5 cm
Fish measured
2,567
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
9.8 cm16 Jul 2021Palmersbridge160455
8.8 cm28 Jun 2018Palmersbridge153138
8.8 cm11 Oct 1979Trezibbett135523
8.8 cm27 Jun 1979Trezibbett135491
8.7 cm5 Aug 2021Draynes Bridge160535
8.6 cm12 Oct 1979Lower Langdon135524
8.5 cm1 Jul 2022Palmersbridge161664
8.5 cm16 Jul 2021Palmersbridge160455
8.5 cm28 Jun 2018Palmersbridge153138
8.5 cm8 Aug 1979Trezibbett135502

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
Lower Langdon11 Aug 197710 Jul 202628
Palmersbridge18 Aug 197729 Jul 202529
Draynes Bridge21 Apr 200516 Sept 202415
Trezibbett22 Jun 19777 Aug 202419
Upstream Doublebois Bridge6 Aug 20246 Aug 20241
Treverbyn19 Apr 197728 Aug 200912
Lamelgate8 Jul 19948 Sept 19974
Codda29 Aug 199729 Aug 19971
Harrowbridge15 Jun 199515 Jun 19951
Westerlake Spawning Beds14 Jun 199514 Jun 19951
Ninestones Spawning Beds14 Jun 199514 Jun 19951
Leskernick27 Sept 197927 Sept 19791

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

1977–2026

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 2,567 measured fish were spread across different length ranges.

Smallest
1.1 cm
Lower quarter
4.3 cm
Median
5.5 cm
Upper quarter
6.4 cm
Largest
9.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Fowey

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

Brown / sea trout Bullhead European eel Atlantic salmon Brook lamprey 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 →