Historic monitoring evidence · Environment Agency
Langleys Dunmow
East Anglia · 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.
Bullhead
Cottus gobio- First record
- 21 Sept 1983
- Latest record
- 19 Aug 2025
- Survey events
- 13
Chub
Leuciscus cephalus- First record
- 21 Sept 1983
- Latest record
- 19 Aug 2025
- Survey events
- 11
Minnow
Phoxinus phoxinus- First record
- 21 Sept 1983
- Latest record
- 19 Aug 2025
- Survey events
- 10
Gudgeon
Gobio gobio- First record
- 21 Sept 1983
- Latest record
- 19 Aug 2025
- Survey events
- 9
Dace
Leuciscus leuciscus- First record
- 16 Aug 2001
- Latest record
- 19 Aug 2025
- Survey events
- 8
Roach
Rutilus rutilus- First record
- 21 Aug 1998
- Latest record
- 19 Aug 2025
- Survey events
- 8
Stone loach
Barbatula barbatula- First record
- 21 Sept 1983
- Latest record
- 19 Aug 2025
- Survey events
- 7
3-spined stickleback
Gasterosteus aculeatus- First record
- 21 Aug 1998
- Latest record
- 19 Aug 2025
- Survey events
- 6
Brown / sea trout
Salmo trutta- First record
- 7 Sept 1989
- Latest record
- 19 Aug 2025
- Survey events
- 5
Common [wild] carp
Cyprinus carpio- First record
- 28 Sept 2004
- Latest record
- 5 Sept 2016
- Survey events
- 2
Lampetra sp. ammocoetes
Lampetra- First record
- 5 Aug 2013
- Latest record
- 5 Aug 2013
- Survey events
- 1
Pike
Esox lucius- First record
- 10 Sept 1986
- Latest record
- 28 Sept 2010
- Survey events
- 10
European eels > elvers
Anguilla anguilla- First record
- 21 Sept 1983
- Latest record
- 21 Aug 2007
- Survey events
- 7
Rudd
Scardinius erythrophthalmus- First record
- 28 Sept 2004
- Latest record
- 28 Sept 2004
- Survey events
- 1
Roach x rudd hybrid
Rutilus rutilus x Scardinius erythrophthalmus- First record
- 28 Sept 2004
- Latest record
- 28 Sept 2004
- Survey events
- 1
Rainbow trout
Oncorhynchus mykiss- First record
- 21 Sept 1983
- Latest record
- 21 Sept 1983
- 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