Historic monitoring evidence · Environment Agency
Upstream of Slough Weir
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.
Perch
Perca fluviatilis- First record
- 3 Sept 2004
- Latest record
- 23 Aug 2013
- Survey events
- 7
Gudgeon
Gobio gobio- First record
- 26 Aug 2002
- Latest record
- 23 Aug 2013
- Survey events
- 4
Tench
Tinca tinca- First record
- 3 Sept 2004
- Latest record
- 23 Aug 2013
- Survey events
- 4
Pike
Esox lucius- First record
- 25 Aug 2005
- Latest record
- 23 Aug 2013
- Survey events
- 4
Ruffe
Gymnocephalus cernuus- First record
- 26 Aug 2009
- Latest record
- 23 Aug 2013
- Survey events
- 2
Stone loach
Barbatula barbatula- First record
- 3 Sept 2004
- Latest record
- 24 Aug 2010
- Survey events
- 5
Common bream
Abramis brama- First record
- 26 Aug 2002
- Latest record
- 24 Aug 2010
- Survey events
- 4
Bullhead
Cottus gobio- First record
- 24 Aug 2010
- Latest record
- 24 Aug 2010
- Survey events
- 1
3-spined stickleback
Gasterosteus aculeatus- First record
- 26 Aug 2002
- Latest record
- 26 Aug 2009
- Survey events
- 4
Bleak
Alburnus alburnus- First record
- 26 Aug 2002
- Latest record
- 26 Aug 2009
- Survey events
- 3
Roach
Rutilus rutilus- First record
- 15 Aug 2006
- Latest record
- 26 Aug 2009
- Survey events
- 3
10-spined stickleback
Pungitius pungitius- First record
- 26 Aug 2002
- Latest record
- 27 Aug 2008
- Survey events
- 6
Chub
Leuciscus cephalus- First record
- 26 Aug 2002
- Latest record
- 26 Aug 2002
- Survey events
- 1
Minnow
Phoxinus phoxinus- First record
- 26 Aug 2002
- Latest record
- 26 Aug 2002
- 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