Historic monitoring evidence · Environment Agency
Cura Fisheries
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.
Brown / sea trout
Salmo trutta- First record
- 23 Jul 2004
- Latest record
- 25 Apr 2024
- Survey events
- 7
Bullhead
Cottus gobio- First record
- 23 Jul 2004
- Latest record
- 25 Apr 2024
- Survey events
- 7
Minnow
Phoxinus phoxinus- First record
- 23 Jul 2004
- Latest record
- 25 Apr 2024
- Survey events
- 6
Stone loach
Barbatula barbatula- First record
- 23 Jul 2004
- Latest record
- 25 Apr 2024
- Survey events
- 6
3-spined stickleback
Gasterosteus aculeatus- First record
- 23 Jul 2004
- Latest record
- 25 Apr 2024
- Survey events
- 5
Roach
Rutilus rutilus- First record
- 23 Jul 2004
- Latest record
- 25 Apr 2024
- Survey events
- 2
Pike
Esox lucius- First record
- 1 Sept 2016
- Latest record
- 1 Sept 2016
- Survey events
- 1
Pike varieties
Esox lucius- First record
- 19 Sept 2008
- Latest record
- 3 Sept 2010
- Survey events
- 3
Perch
Perca fluviatilis- First record
- 3 Sept 2010
- Latest record
- 3 Sept 2010
- Survey events
- 1
Grayling
Thymallus thymallus- First record
- 8 Sept 2009
- Latest record
- 8 Sept 2009
- Survey events
- 1
Mirror carp
Cyprinus carpio- First record
- 23 Jul 2004
- Latest record
- 19 Sept 2008
- Survey events
- 2
Feral [brown] goldfish
Carassius auratus- First record
- 23 Jul 2004
- Latest record
- 19 Sept 2008
- Survey events
- 2
Golden goldfish
Carassius auratus- First record
- 19 Sept 2008
- Latest record
- 19 Sept 2008
- Survey events
- 1
Tench varieties
Tinca tinca- First record
- 19 Sept 2008
- Latest record
- 19 Sept 2008
- Survey events
- 1
Golden rudd
Scardinius erythrophthalmus- First record
- 23 Jul 2004
- Latest record
- 17 May 2007
- Survey events
- 2
Tench
Tinca tinca- First record
- 23 Jul 2004
- Latest record
- 17 May 2007
- Survey events
- 2
Orfe / Ide
Leuciscus idus- First record
- 23 Jul 2004
- Latest record
- 23 Jul 2004
- Survey events
- 1
Golden orfe
Leuciscus idus- First record
- 23 Jul 2004
- Latest record
- 23 Jul 2004
- 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