Minnow · Phoxinus phoxinus

Minnow in the Bourn Brook

Largest measured minnow: 8.3 cm

The largest minnow measured in Environment Agency surveys of the Bourn Brook was 8.3 cm, recorded at Westfield Farm on 11 June 2013.

Across 111 measured minnow, the median measured length was 5.6 cm.

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

See minnow records across England →

Most recent observation6 March 2025Westfield Farm · 29 fish

Largest measured minnow: 8.3 cm
Median length: 5.6 cm
Fish measured: 111
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
8.3 cm	11 Jun 2013	Westfield Farm	136320
8.1 cm	5 Apr 2019	Westfield Farm	154433
7.9 cm	6 Mar 2025	Westfield Farm	175911
7.7 cm	5 Apr 2019	Westfield Farm	154433
7.5 cm	6 Mar 2025	Westfield Farm	175911
7.4 cm	6 Mar 2025	Westfield Farm	175911
7.2 cm	5 Apr 2019	Westfield Farm	154433
7.2 cm	11 Jun 2013	Westfield Farm	136320
7 cm	11 Jun 2013	Westfield Farm	136320
6.9 cm	6 Mar 2025	Westfield Farm	175911

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
Westfield Farm	18 Apr 1991	6 Mar 2025	7
Barton Bridge	13 Feb 1997	13 Feb 1997	1

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

1991–2025

Survey records by year

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

191

092

193

094

095

096

197

098

099

000

001

002

003

004

105

006

007

008

009

110

011

012

113

014

015

016

017

018

119

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 111 measured fish were spread across different length ranges.

Smallest: 2.3 cm
Lower quarter: 4.4 cm
Median: 5.6 cm
Upper quarter: 6.3 cm
Largest: 8.3 cm

0–99 mm

111

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bourn Brook

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

Pike Bullhead Roach Dace Perch Chub

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 →