Minnow · Phoxinus phoxinus

Minnow in the Lee Navigation

Largest measured minnow: 7.6 cm

The largest minnow measured in Environment Agency surveys of the Lee Navigation was 7.6 cm, recorded at Ware Priory on 10 October 2002.

Across 97 measured minnow, the median measured length was 5.2 cm.

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

See minnow records across England →

Most recent observation16 September 2025Upstream Carthagena Lock

Largest measured minnow: 7.6 cm
Median length: 5.2 cm
Fish measured: 97
Survey locations: 9

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
7.6 cm	10 Oct 2002	Ware Priory	72657
7.5 cm	10 Oct 2002	Ware Priory	72657
6.6 cm	10 Oct 2002	Ware Priory	72657
6.5 cm	7 Oct 2004	Ware Priory	82728
6.5 cm	10 Oct 2002	Ware Priory	72657
6.5 cm	10 Oct 2002	Ware Priory	72657
6.4 cm	7 Oct 2004	Ware Priory	82728
6.4 cm	10 Oct 2002	Ware Priory	72657
6.3 cm	10 Oct 2002	Ware Priory	72657
6.3 cm	10 Oct 2002	Ware Priory	72657

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
Upstream Carthagena Lock	16 Sept 2025	16 Sept 2025	1
Enfield Lock	22 Oct 2002	7 Aug 2025	3
Ponders End	29 Aug 2023	5 Aug 2025	3
Picketts Lock	25 Jul 2023	10 Jul 2025	3
Hertford Basin	27 Aug 2019	8 Jul 2025	4
Ware Priory	10 Oct 2002	20 Aug 2009	5
Small Lee, Prince of Wales fields	2 Feb 1993	2 Feb 1993	1
Rye House	26 Apr 1978	26 Apr 1978	1
Fieldes Weir to Dobbs Weir	19 Apr 1978	19 Apr 1978	1

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

1978–2025

Survey records by year

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

278

079

080

081

082

083

084

085

086

087

088

089

090

091

092

193

094

095

096

097

098

099

000

001

202

103

104

105

006

007

008

109

010

011

012

013

014

015

016

017

018

119

020

021

022

323

424

525

Fish measured by surveyors

Measured length distribution

See how the 97 measured fish were spread across different length ranges.

Smallest: 1.6 cm
Lower quarter: 4.2 cm
Median: 5.2 cm
Upper quarter: 5.6 cm
Largest: 7.6 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Lee Navigation

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

Roach Perch Pike Chub Bleak Tench

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 →