Historic monitoring evidence · Environment Agency
Dedham (Old) River
East Anglia · 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.
Flounder
Platichthys flesus- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 8
European eels > elvers
Anguilla anguilla- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 7
Chub
Leuciscus cephalus- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 6
Common bream
Abramis brama- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 6
Roach
Rutilus rutilus- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 6
Dace
Leuciscus leuciscus- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 5
Pike
Esox lucius- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 4
Roach x common bream hybrid
Rutilus rutilus x Abramis brama- First record
- 24 Aug 1983
- Latest record
- 18 Jun 2003
- Survey events
- 4
3-spined stickleback
Gasterosteus aculeatus- First record
- 7 Jul 1997
- Latest record
- 18 Jun 2003
- Survey events
- 3
Bullhead
Cottus gobio- First record
- 18 Jun 2003
- Latest record
- 18 Jun 2003
- Survey events
- 1
Gudgeon
Gobio gobio- First record
- 24 Aug 1983
- Latest record
- 28 Jun 2000
- Survey events
- 4
10-spined stickleback
Pungitius pungitius- First record
- 28 Jun 2000
- Latest record
- 28 Jun 2000
- Survey events
- 1
Spined loach
Cobitis taenia- First record
- 28 Jun 2000
- Latest record
- 28 Jun 2000
- Survey events
- 1
Mirror carp
Cyprinus carpio- First record
- 7 Jul 1997
- Latest record
- 7 Jul 1997
- Survey events
- 1
Perch
Perca fluviatilis- First record
- 24 Aug 1983
- Latest record
- 15 Sept 1994
- Survey events
- 2
Thick lipped grey mullet
Chelon labrosus- First record
- 24 Aug 1983
- Latest record
- 15 Sept 1994
- Survey events
- 2
Brown / sea trout
Salmo trutta- First record
- 3 Jun 1985
- Latest record
- 3 Jun 1985
- Survey events
- 1
Ruffe
Gymnocephalus cernuus- First record
- 24 Aug 1983
- Latest record
- 24 Aug 1983
- 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