Historic monitoring evidence · Environment Agency
Horsham STW
Solent and South Downs · 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 Aug 2002
- Latest record
- 26 Jul 2016
- Survey events
- 12
Dace
Leuciscus leuciscus- First record
- 1 Aug 2002
- Latest record
- 26 Jul 2016
- Survey events
- 12
Roach
Rutilus rutilus- First record
- 1 Aug 2002
- Latest record
- 26 Jul 2016
- Survey events
- 12
Gudgeon
Gobio gobio- First record
- 1 Aug 2002
- Latest record
- 26 Jul 2016
- Survey events
- 10
Pike
Esox lucius- First record
- 1 Aug 2002
- Latest record
- 26 Jul 2016
- Survey events
- 10
Perch
Perca fluviatilis- First record
- 3 Aug 2005
- Latest record
- 26 Jul 2016
- Survey events
- 8
Bullhead
Cottus gobio- First record
- 1 Aug 2002
- Latest record
- 26 Jul 2016
- Survey events
- 8
Rudd
Scardinius erythrophthalmus- First record
- 3 Aug 2006
- Latest record
- 26 Jul 2016
- Survey events
- 5
Lampetra sp.
Lampetra- First record
- 26 Jul 2016
- Latest record
- 26 Jul 2016
- Survey events
- 1
European eels > elvers
Anguilla anguilla- First record
- 26 Jul 2016
- Latest record
- 26 Jul 2016
- Survey events
- 1
Minnow
Phoxinus phoxinus- First record
- 1 Aug 2002
- Latest record
- 29 Jul 2013
- Survey events
- 9
Roach x common bream hybrid
Rutilus rutilus x Abramis brama- First record
- 3 Aug 2006
- Latest record
- 29 Jul 2013
- Survey events
- 3
European eel
Anguilla anguilla- First record
- 1 Aug 2002
- Latest record
- 31 Jul 2012
- Survey events
- 10
Lamprey sp. ammocoetes
Petromyzontidae- First record
- 31 Jul 2012
- Latest record
- 31 Jul 2012
- Survey events
- 1
Common [wild] carp
Cyprinus carpio- First record
- 11 Aug 2009
- Latest record
- 11 Aug 2009
- Survey events
- 1
Common bream
Abramis brama- First record
- 1 Aug 2002
- Latest record
- 16 Jul 2008
- Survey events
- 6
3-spined stickleback
Gasterosteus aculeatus- First record
- 13 Aug 2004
- Latest record
- 3 Aug 2006
- Survey events
- 2
Stone loach
Barbatula barbatula- First record
- 1 Aug 2002
- Latest record
- 13 Aug 2004
- Survey events
- 3
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