ARAnglerRadar evidence & rules

Historic monitoring evidence · Environment Agency

Springwell Lane

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.

25survey events
11 Feb 1986first recorded survey
15 Jun 2026latest 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:8109
EA waterbody ID
GB106039023090
Waterbody
Colne
Catchment
Colne
02 · Observed evidence

Dated survey record

Scope
freshwater
Survey events
25
Positive taxa shown
24
Recorded methods
DC ELECTRIC FISHING · ELECTRIC FISHING · PDC ELECTRIC FISHING
03 · Freshness

Latest survey within 12 months

Coverage runs from 11 Feb 1986 to 15 Jun 2026. 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.

Chub

Leuciscus cephalus
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
25

Barbel

Barbus barbus
First record
18 Oct 2001
Latest record
15 Jun 2026
Survey events
24

Dace

Leuciscus leuciscus
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
24

Gudgeon

Gobio gobio
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
24

Roach

Rutilus rutilus
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
24

Perch

Perca fluviatilis
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
23

Bullhead

Cottus gobio
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
20

Minnow

Phoxinus phoxinus
First record
11 Feb 1986
Latest record
15 Jun 2026
Survey events
19

Brown / sea trout

Salmo trutta
First record
18 Oct 2001
Latest record
15 Jun 2026
Survey events
18

European eels > elvers

Anguilla anguilla
First record
17 Jul 2003
Latest record
15 Jun 2026
Survey events
2

Pike

Esox lucius
First record
22 Nov 2001
Latest record
12 Jun 2025
Survey events
21

Tench

Tinca tinca
First record
17 Jul 2003
Latest record
12 Jun 2025
Survey events
12

Mirror carp

Cyprinus carpio
First record
20 Jun 2024
Latest record
20 Jun 2024
Survey events
1

Bleak

Alburnus alburnus
First record
22 Nov 2001
Latest record
22 Jun 2023
Survey events
20

Stone loach

Barbatula barbatula
First record
11 Feb 1986
Latest record
22 Jun 2023
Survey events
7

3-spined stickleback

Gasterosteus aculeatus
First record
17 Jul 2003
Latest record
22 Jun 2023
Survey events
4

Ruffe

Gymnocephalus cernuus
First record
5 Jul 2017
Latest record
1 Aug 2022
Survey events
2

Tench varieties

Tinca tinca
First record
5 Jul 2017
Latest record
5 Jul 2017
Survey events
1

Brook lamprey

Lampetra planeri
First record
30 May 2012
Latest record
30 May 2012
Survey events
1

European eel

Anguilla anguilla
First record
11 Feb 1986
Latest record
26 May 2009
Survey events
7

Common bream

Abramis brama
First record
22 Nov 2001
Latest record
27 Jul 2006
Survey events
2

Roach x common bream hybrid

Rutilus rutilus x Abramis brama
First record
9 Aug 2005
Latest record
9 Aug 2005
Survey events
1

Roach x silver bream hybrid

Rutilus rutilus x Abramis bjoerkna
First record
22 Nov 2001
Latest record
22 Nov 2001
Survey events
1

Pike varieties

Esox lucius
First record
11 Feb 1986
Latest record
11 Feb 1986
Survey events
1

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 →