ARAnglerRadar evidence & rules

Historic monitoring evidence · Environment Agency

Hythe End

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.

13survey events
20 Nov 2001first recorded survey
6 Jun 2014latest recorded survey
17observed 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:8120
EA waterbody ID
GB106039023010
Waterbody
Colnebrook
Catchment
Colne
02 · Observed evidence

Dated survey record

Scope
freshwater
Survey events
13
Positive taxa shown
17
Recorded methods
DC ELECTRIC FISHING · ELECTRIC FISHING · PDC ELECTRIC FISHING
03 · Freshness

Latest survey about 12 years ago

Coverage runs from 20 Nov 2001 to 6 Jun 2014. 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
20 Nov 2001
Latest record
6 Jun 2014
Survey events
13

Roach

Rutilus rutilus
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
13

Dace

Leuciscus leuciscus
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
11

Perch

Perca fluviatilis
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
10

European eel

Anguilla anguilla
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
8

Minnow

Phoxinus phoxinus
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
8

Gudgeon

Gobio gobio
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
7

Pike

Esox lucius
First record
20 Nov 2001
Latest record
6 Jun 2014
Survey events
6

Bleak

Alburnus alburnus
First record
20 Nov 2001
Latest record
12 Jun 2013
Survey events
10

Tench

Tinca tinca
First record
13 Jul 2005
Latest record
12 Jun 2013
Survey events
2

Barbel

Barbus barbus
First record
20 Nov 2001
Latest record
4 Jul 2012
Survey events
7

European eels > elvers

Anguilla anguilla
First record
25 Jul 2003
Latest record
4 Jul 2012
Survey events
3

Pike varieties

Esox lucius
First record
12 Jun 2007
Latest record
14 Jun 2011
Survey events
4

Stone loach

Barbatula barbatula
First record
25 Jul 2003
Latest record
12 Jun 2008
Survey events
2

Common [wild] carp

Cyprinus carpio
First record
14 Aug 2002
Latest record
14 Aug 2002
Survey events
1

Mirror carp

Cyprinus carpio
First record
14 Aug 2002
Latest record
14 Aug 2002
Survey events
1

Common bream

Abramis brama
First record
20 Nov 2001
Latest record
20 Nov 2001
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 →