Minnow · Phoxinus phoxinus

Minnow in the Poltesco Stream

Largest measured minnow: 8.8 cm

The largest minnow measured in Environment Agency surveys of the Poltesco Stream was 8.8 cm, recorded at Goonhilly Downs on 27 May 2021.

Across 141 measured minnow, the median measured length was 4.7 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Poltesco Stream.

See minnow records across England →

Most recent observation17 May 2023Goonhilly Downs · 2 fish

Largest measured minnow: 8.8 cm
Median length: 4.7 cm
Fish measured: 141
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.

Length	Survey date	Survey location	Survey ID
8.8 cm	27 May 2021	Goonhilly Downs	160508
8.6 cm	22 Sept 2009	Goonhilly Downs	120756
8.3 cm	22 Sept 2009	Goonhilly Downs	120756
8 cm	22 Sept 2009	Goonhilly Downs	120756
7.8 cm	18 May 2022	Goonhilly Downs	160986
7.8 cm	18 May 2022	Goonhilly Downs	160986
7.8 cm	27 May 2021	Goonhilly Downs	160508
7.8 cm	22 Sept 2009	Goonhilly Downs	120756
7.8 cm	22 Sept 2009	Goonhilly Downs	120756
7.8 cm	22 Sept 2009	Goonhilly Downs	120756

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 surveyed	First recorded	Last recorded	Visits finding minnow
Goonhilly Downs	20 Jun 2008	17 May 2023	5
Poltesco	19 May 2014	19 May 2014	1

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

2008–2023

Survey records by year

Each bar shows how many survey visits recorded minnow that year.

108

109

010

011

012

013

114

015

016

017

018

019

020

121

122

123

Fish measured by surveyors

Measured length distribution

See how the 141 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 3.5 cm
Median: 4.7 cm
Upper quarter: 6.3 cm
Largest: 8.8 cm

0–99 mm

141

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Poltesco Stream

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

Brown / sea trout European eel

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 →