Historic monitoring evidence · Environment Agency
Lilly Mill
Thames · 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
- 5 Nov 1991
- Latest record
- 15 Oct 2013
- Survey events
- 7
Dace
Leuciscus leuciscus- First record
- 5 Nov 1991
- Latest record
- 15 Oct 2013
- Survey events
- 7
Rainbow trout
Oncorhynchus mykiss- First record
- 8 Nov 2001
- Latest record
- 15 Oct 2013
- Survey events
- 6
Chub
Leuciscus cephalus- First record
- 5 Nov 1991
- Latest record
- 15 Oct 2013
- Survey events
- 6
Pike
Esox lucius- First record
- 8 Nov 2001
- Latest record
- 15 Oct 2013
- Survey events
- 4
Roach
Rutilus rutilus- First record
- 5 Nov 1991
- Latest record
- 15 Oct 2013
- Survey events
- 3
Gudgeon
Gobio gobio- First record
- 5 Nov 1991
- Latest record
- 7 Nov 2005
- Survey events
- 4
Common [wild] carp
Cyprinus carpio- First record
- 8 Nov 2001
- Latest record
- 8 Nov 2001
- Survey events
- 1
European eels > elvers
Anguilla anguilla- First record
- 5 Nov 1991
- Latest record
- 5 Nov 1991
- 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