Historic monitoring evidence · Environment Agency
Grange Paddocks
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.
Dace
Leuciscus leuciscus- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 13
Chub
Leuciscus cephalus- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 12
Brown / sea trout
Salmo trutta- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 11
Minnow
Phoxinus phoxinus- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 11
Roach
Rutilus rutilus- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 10
3-spined stickleback
Gasterosteus aculeatus- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 10
Bullhead
Cottus gobio- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 10
Stone loach
Barbatula barbatula- First record
- 23 Sept 2004
- Latest record
- 19 Aug 2025
- Survey events
- 7
Perch
Perca fluviatilis- First record
- 7 Oct 2003
- Latest record
- 19 Aug 2025
- Survey events
- 6
Pike
Esox lucius- First record
- 21 Aug 2019
- Latest record
- 19 Aug 2025
- Survey events
- 2
Bleak
Alburnus alburnus- First record
- 19 Aug 2025
- Latest record
- 19 Aug 2025
- Survey events
- 1
European eel
Anguilla anguilla- First record
- 3 May 2007
- Latest record
- 3 May 2007
- Survey events
- 1
Rudd varieties
Scardinius erythrophthalmus- First record
- 26 Sept 2005
- Latest record
- 26 Sept 2005
- Survey events
- 1
European eels > elvers
Anguilla anguilla- First record
- 7 Oct 2003
- Latest record
- 7 Oct 2003
- 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