Historic monitoring evidence · Environment Agency
Marston
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.
Roach
Rutilus rutilus- First record
- 27 Jul 2004
- Latest record
- 23 Jun 2016
- Survey events
- 12
Perch
Perca fluviatilis- First record
- 27 Jul 2004
- Latest record
- 23 Jun 2016
- Survey events
- 12
Bleak
Alburnus alburnus- First record
- 27 Jul 2004
- Latest record
- 23 Jun 2016
- Survey events
- 11
Pike
Esox lucius- First record
- 27 Jul 2004
- Latest record
- 23 Jun 2016
- Survey events
- 10
Chub
Leuciscus cephalus- First record
- 27 Jul 2004
- Latest record
- 23 Jun 2016
- Survey events
- 9
Common bream
Abramis brama- First record
- 9 Aug 2007
- Latest record
- 23 Jun 2016
- Survey events
- 7
Dace
Leuciscus leuciscus- First record
- 27 Jul 2004
- Latest record
- 23 Jun 2016
- Survey events
- 6
Silver bream
Abramis bjoerkna- First record
- 28 Jul 2005
- Latest record
- 13 Jun 2014
- Survey events
- 7
Ruffe
Gymnocephalus cernuus- First record
- 9 Aug 2007
- Latest record
- 13 Jun 2014
- Survey events
- 2
Common [wild] carp
Cyprinus carpio- First record
- 5 Jun 2013
- Latest record
- 5 Jun 2013
- Survey events
- 1
Mirror carp
Cyprinus carpio- First record
- 5 Jun 2013
- Latest record
- 5 Jun 2013
- Survey events
- 1
Roach x common bream hybrid
Rutilus rutilus x Abramis brama- First record
- 5 Jun 2013
- Latest record
- 5 Jun 2013
- Survey events
- 1
Gudgeon
Gobio gobio- First record
- 27 Jul 2004
- Latest record
- 28 May 2012
- Survey events
- 8
Tench
Tinca tinca- First record
- 27 Jul 2004
- Latest record
- 25 May 2011
- Survey events
- 4
Common carp varieties
Cyprinus carpio- First record
- 9 Aug 2007
- Latest record
- 9 Aug 2007
- Survey events
- 1
Rudd x common bream hybrid
Scardinius erythrophthalmus x Abramis brama- First record
- 9 Aug 2007
- Latest record
- 9 Aug 2007
- 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