ARAnglerRadar evidence & rules

Historic monitoring evidence · Environment Agency

Cornmill Meadows 3 (Mile Nursery)

Hertfordshire and North London · survey site

This page records ecological survey evidence. It is not proof of current fish presence, abundance, fishing quality, access, permission or safety at this location.

14survey events
17 Dec 2004first recorded survey
8 May 2025latest recorded survey
24observed taxa shown

Separate-signal passport

What this record proves — and what it does not.

No blended quality score. Identity, monitoring, freshness, access and rules stay as separate signals so one strong fact cannot hide a missing one.

01 · Identity

Stable monitoring site

AnglerRadar ID
ea-fish-site:13973
EA waterbody ID
GB106038077851
Waterbody
Old River Lea
Catchment
Lee
02 · Observed evidence

Dated survey record

Scope
freshwater
Survey events
14
Positive taxa shown
24
Recorded methods
DC ELECTRIC FISHING · ELECTRIC FISHING · PDC ELECTRIC FISHING
03 · Freshness

Latest survey about 1 year ago

Coverage runs from 17 Dec 2004 to 8 May 2025. This is historic monitoring, never a live presence or catch forecast.

04 · Trip constraints

Access remains unresolved

The survey carries no fishing-rights boundary, permission, opening status or safety notice. Check the owner, rod licence, current byelaws and conditions separately.

Location protection: AnglerRadar does not print the survey coordinate on this page, and nearby API results use coarsened survey areas rather than exact species-linked points.

Observed taxa

What monitoring recorded here

Taxa are ordered by latest survey date. Counts and records reflect monitoring events, not an angling forecast.

Roach

Rutilus rutilus
First record
17 Dec 2004
Latest record
8 May 2025
Survey events
14

Perch

Perca fluviatilis
First record
17 Dec 2004
Latest record
8 May 2025
Survey events
14

Tench

Tinca tinca
First record
17 Dec 2004
Latest record
8 May 2025
Survey events
9

European eel

Anguilla anguilla
First record
1 May 2007
Latest record
8 May 2025
Survey events
8

Ruffe

Gymnocephalus cernuus
First record
9 May 2008
Latest record
8 May 2025
Survey events
6

Pike varieties

Esox lucius
First record
9 May 2008
Latest record
8 May 2025
Survey events
4

Chub

Leuciscus cephalus
First record
17 Dec 2004
Latest record
6 Aug 2024
Survey events
13

Bleak

Alburnus alburnus
First record
1 May 2007
Latest record
6 Aug 2024
Survey events
11

Bullhead

Cottus gobio
First record
1 May 2007
Latest record
6 Aug 2024
Survey events
11

Minnow

Phoxinus phoxinus
First record
1 May 2007
Latest record
6 Aug 2024
Survey events
10

Pike

Esox lucius
First record
17 Dec 2004
Latest record
6 Aug 2024
Survey events
9

Stone loach

Barbatula barbatula
First record
1 May 2007
Latest record
6 Aug 2024
Survey events
9

Common bream

Abramis brama
First record
1 May 2007
Latest record
6 Aug 2024
Survey events
8

European eels > elvers

Anguilla anguilla
First record
17 Dec 2004
Latest record
6 Aug 2024
Survey events
6

Rudd

Scardinius erythrophthalmus
First record
6 Aug 2024
Latest record
6 Aug 2024
Survey events
1

Dace

Leuciscus leuciscus
First record
1 May 2007
Latest record
8 Jun 2023
Survey events
10

Gudgeon

Gobio gobio
First record
1 May 2007
Latest record
8 Jun 2023
Survey events
10

Brown / sea trout

Salmo trutta
First record
10 May 2017
Latest record
10 May 2017
Survey events
1

Silver bream

Abramis bjoerkna
First record
10 May 2017
Latest record
10 May 2017
Survey events
1

European elvers

Anguilla anguilla
First record
10 May 2017
Latest record
10 May 2017
Survey events
1

Barbel

Barbus barbus
First record
16 May 2016
Latest record
16 May 2016
Survey events
1

Brook lamprey

Lampetra planeri
First record
16 May 2016
Latest record
16 May 2016
Survey events
1

Roach x common bream hybrid

Rutilus rutilus x Abramis brama
First record
16 May 2016
Latest record
16 May 2016
Survey events
1

Tench varieties

Tinca tinca
First record
1 May 2007
Latest record
5 May 2010
Survey events
3

Rules and access

Check before you travel.

Environment Agency ecology records do not carry fishing-rights boundaries or live restrictions. Confirm the fishery owner, permission, local byelaws, seasonal rules, safety notices and current conditions before setting out.

Check live freshwater fishing rules

Provenance

Source, licence and boundary

Open the official dataset

More evidence nearby

Other surveyed waters in Hertfordshire and North London.

409 survey sites in this ecology region carry recorded taxa. Each keeps its own dates and source.

Browse Hertfordshire and North London survey sites →