Historic monitoring evidence · Environment Agency
Twyford RH Channel
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.
Chub
Leuciscus cephalus- First record
- 6 Dec 1991
- Latest record
- 14 Apr 2010
- Survey events
- 8
Dace
Leuciscus leuciscus- First record
- 6 Dec 1991
- Latest record
- 14 Apr 2010
- Survey events
- 8
Gudgeon
Gobio gobio- First record
- 6 Dec 1991
- Latest record
- 14 Apr 2010
- Survey events
- 8
Perch
Perca fluviatilis- First record
- 6 Dec 1991
- Latest record
- 14 Apr 2010
- Survey events
- 8
Pike
Esox lucius- First record
- 6 Dec 1991
- Latest record
- 14 Apr 2010
- Survey events
- 8
Roach
Rutilus rutilus- First record
- 6 Dec 1991
- Latest record
- 14 Apr 2010
- Survey events
- 6
Brown / sea trout
Salmo trutta- First record
- 14 Apr 2010
- Latest record
- 14 Apr 2010
- Survey events
- 1
Bleak
Alburnus alburnus- First record
- 6 Dec 1991
- Latest record
- 15 Apr 2009
- Survey events
- 7
Tench
Tinca tinca- First record
- 11 Apr 2006
- Latest record
- 15 Apr 2009
- Survey events
- 3
Ruffe
Gymnocephalus cernuus- First record
- 6 Dec 1991
- Latest record
- 15 Apr 2009
- Survey events
- 2
Barbel
Barbus barbus- First record
- 6 Dec 1991
- Latest record
- 13 May 2008
- Survey events
- 6
Brook lamprey
Lampetra planeri- First record
- 1 May 2007
- Latest record
- 1 May 2007
- Survey events
- 1
Common bream
Abramis brama- First record
- 5 May 2005
- Latest record
- 5 May 2005
- Survey events
- 1
European eels > elvers
Anguilla anguilla- First record
- 6 Dec 1991
- Latest record
- 6 Dec 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