Historic monitoring evidence · Environment Agency
Fishers Green
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.
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
- 6 Sept 1978
- Latest record
- 29 Jul 2025
- Survey events
- 19
Perch
Perca fluviatilis- First record
- 9 Jun 1992
- Latest record
- 29 Jul 2025
- Survey events
- 19
Roach
Rutilus rutilus- First record
- 6 Sept 1978
- Latest record
- 29 Jul 2025
- Survey events
- 18
Gudgeon
Gobio gobio- First record
- 6 Sept 1978
- Latest record
- 29 Jul 2025
- Survey events
- 17
Bullhead
Cottus gobio- First record
- 6 Sept 1978
- Latest record
- 29 Jul 2025
- Survey events
- 15
Minnow
Phoxinus phoxinus- First record
- 6 Sept 1978
- Latest record
- 29 Jul 2025
- Survey events
- 15
Bleak
Alburnus alburnus- First record
- 6 Sept 1978
- Latest record
- 29 Jul 2025
- Survey events
- 11
Pike
Esox lucius- First record
- 7 Aug 2007
- Latest record
- 29 Jul 2025
- Survey events
- 9
European eels > elvers
Anguilla anguilla- First record
- 18 Sept 2006
- Latest record
- 29 Jul 2025
- Survey events
- 6
Brook lamprey
Lampetra planeri- First record
- 3 Aug 2012
- Latest record
- 29 Jul 2025
- Survey events
- 5
Dace
Leuciscus leuciscus- First record
- 6 Sept 1978
- Latest record
- 27 Jul 2023
- Survey events
- 18
Barbel
Barbus barbus- First record
- 6 Sept 1978
- Latest record
- 27 Jul 2023
- Survey events
- 16
Stone loach
Barbatula barbatula- First record
- 14 Nov 2003
- Latest record
- 27 Jul 2023
- Survey events
- 12
Tench
Tinca tinca- First record
- 8 Aug 2017
- Latest record
- 11 Jul 2019
- Survey events
- 2
Roach x dace hybrid
Rutilus rutilus x Leuciscus leuciscus- First record
- 10 Jul 2018
- Latest record
- 10 Jul 2018
- Survey events
- 1
3-spined stickleback
Gasterosteus aculeatus- First record
- 6 Sept 1978
- Latest record
- 4 Jul 2013
- Survey events
- 6
European eel
Anguilla anguilla- First record
- 28 Aug 2008
- Latest record
- 4 Jul 2013
- Survey events
- 3
Brown / sea trout
Salmo trutta- First record
- 14 Nov 2003
- Latest record
- 5 Jul 2011
- Survey events
- 6
Pike varieties
Esox lucius- First record
- 28 Jan 1993
- Latest record
- 28 Jul 2010
- Survey events
- 3
Ruffe
Gymnocephalus cernuus- First record
- 7 Aug 2007
- Latest record
- 7 Aug 2007
- Survey events
- 1
Brook lamprey > ammocoete
Lampetra planeri- First record
- 7 Aug 2007
- Latest record
- 7 Aug 2007
- Survey events
- 1
Common bream
Abramis brama- First record
- 28 Jan 1993
- Latest record
- 28 Jan 1993
- 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 rulesProvenance
Source, licence and boundary
- SourceEnvironment Agency Ecology & Fish Data
- LicenceOpen Government Licence v3.0
- Source copy retrieved23 Jul 2026
- Terms checked23 Jul 2026
- CoverageHistoric monitoring evidence, separately dated per record
- Not assertedCurrent presence, access, permission, fishing quality or safety