Historic monitoring evidence · Environment Agency
Molesey Weir Pool
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
- 1 Sept 1995
- Latest record
- 31 Jul 2025
- Survey events
- 21
Dace
Leuciscus leuciscus- First record
- 1 Sept 1995
- Latest record
- 31 Jul 2025
- Survey events
- 21
Bleak
Alburnus alburnus- First record
- 1 Sept 1995
- Latest record
- 31 Jul 2025
- Survey events
- 21
Brown / sea trout
Salmo trutta- First record
- 16 Sept 2009
- Latest record
- 31 Jul 2025
- Survey events
- 7
Thin lipped grey mullet
Liza ramada- First record
- 23 Jul 2024
- Latest record
- 31 Jul 2025
- Survey events
- 2
Roach
Rutilus rutilus- First record
- 1 Sept 1995
- Latest record
- 23 Jul 2024
- Survey events
- 22
Perch
Perca fluviatilis- First record
- 1 Sept 1995
- Latest record
- 23 Jul 2024
- Survey events
- 20
Pike
Esox lucius- First record
- 1 Sept 1995
- Latest record
- 4 Aug 2022
- Survey events
- 20
Barbel
Barbus barbus- First record
- 1 Sept 1995
- Latest record
- 4 Aug 2022
- Survey events
- 14
European eel
Anguilla anguilla- First record
- 8 Sept 2014
- Latest record
- 4 Aug 2022
- Survey events
- 2
Atlantic salmon
Salmo salar- First record
- 1 Sept 2000
- Latest record
- 16 Sept 2019
- Survey events
- 5
Common carp varieties
Cyprinus carpio- First record
- 16 Sept 2019
- Latest record
- 16 Sept 2019
- Survey events
- 1
European eels > elvers
Anguilla anguilla- First record
- 1 Sept 2000
- Latest record
- 6 Sept 2018
- Survey events
- 10
Gudgeon
Gobio gobio- First record
- 1 Sept 1995
- Latest record
- 10 Sept 2016
- Survey events
- 8
Common [wild] carp
Cyprinus carpio- First record
- 1 Sept 2000
- Latest record
- 8 Sept 2014
- Survey events
- 9
Zander
Sander lucioperca- First record
- 16 Sept 2009
- Latest record
- 8 Sept 2014
- Survey events
- 5
Ruffe
Gymnocephalus cernuus- First record
- 1 Sept 2000
- Latest record
- 8 Sept 2014
- Survey events
- 4
Mirror carp
Cyprinus carpio- First record
- 11 Sept 2012
- Latest record
- 8 Sept 2014
- Survey events
- 2
Common bream
Abramis brama- First record
- 1 Sept 1995
- Latest record
- 11 Sept 2012
- Survey events
- 7
Ghost carp
Cyprinus carpio- First record
- 15 Sept 2004
- Latest record
- 15 Sept 2004
- Survey events
- 1
Flounder
Platichthys flesus- First record
- 19 Sept 2002
- Latest record
- 19 Sept 2002
- Survey events
- 1
Rainbow trout
Oncorhynchus mykiss- First record
- 1 Sept 2000
- Latest record
- 1 Sept 2000
- 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