Historic monitoring evidence · Environment Agency
Frog Mill
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.
Brown / sea trout
Salmo trutta- First record
- 27 Aug 2002
- Latest record
- 5 Aug 2021
- Survey events
- 5
European eel
Anguilla anguilla- First record
- 27 Aug 2002
- Latest record
- 5 Aug 2021
- Survey events
- 4
Bullhead
Cottus gobio- First record
- 27 Aug 2002
- Latest record
- 5 Aug 2021
- Survey events
- 4
Chub
Leuciscus cephalus- First record
- 28 May 2007
- Latest record
- 5 Aug 2021
- Survey events
- 3
Minnow
Phoxinus phoxinus- First record
- 28 May 2007
- Latest record
- 5 Aug 2021
- Survey events
- 3
Dace
Leuciscus leuciscus- First record
- 28 May 2007
- Latest record
- 16 May 2013
- Survey events
- 2
Roach
Rutilus rutilus- First record
- 28 May 2007
- Latest record
- 16 May 2013
- Survey events
- 2
3-spined stickleback
Gasterosteus aculeatus- First record
- 16 May 2013
- Latest record
- 16 May 2013
- Survey events
- 1
Grayling
Thymallus thymallus- First record
- 27 Aug 2002
- Latest record
- 28 May 2007
- 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