Historic monitoring evidence · Environment Agency
Mersham
Kent, South London and East Sussex · 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
- 9 Oct 2002
- Latest record
- 20 Jun 2024
- Survey events
- 5
Dace
Leuciscus leuciscus- First record
- 9 Oct 2002
- Latest record
- 20 Jun 2024
- Survey events
- 5
Common bream
Abramis brama- First record
- 9 Oct 2002
- Latest record
- 20 Jun 2024
- Survey events
- 5
Gudgeon
Gobio gobio- First record
- 9 Oct 2002
- Latest record
- 20 Jun 2024
- Survey events
- 5
Roach
Rutilus rutilus- First record
- 9 Oct 2002
- Latest record
- 20 Jun 2024
- Survey events
- 5
Perch
Perca fluviatilis- First record
- 9 Oct 2002
- Latest record
- 20 Jun 2024
- Survey events
- 5
Bullhead
Cottus gobio- First record
- 3 Aug 2006
- Latest record
- 20 Jun 2024
- Survey events
- 4
European eels > elvers
Anguilla anguilla- First record
- 19 Jun 2012
- Latest record
- 20 Jun 2024
- Survey events
- 3
Stone loach
Barbatula barbatula- First record
- 19 Jun 2012
- Latest record
- 20 Jun 2024
- Survey events
- 3
Minnow
Phoxinus phoxinus- First record
- 3 Aug 2006
- Latest record
- 6 Jun 2018
- Survey events
- 3
Brown / sea trout
Salmo trutta- First record
- 19 Jun 2012
- Latest record
- 6 Jun 2018
- Survey events
- 2
Lampetra sp.
Lampetra- First record
- 6 Jun 2018
- Latest record
- 6 Jun 2018
- Survey events
- 1
European eel
Anguilla anguilla- First record
- 9 Oct 2002
- Latest record
- 3 Aug 2006
- Survey events
- 2
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