Historic monitoring evidence · Environment Agency
D/S Dedham Mill
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.
Roach
Rutilus rutilus- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 14
Gudgeon
Gobio gobio- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 13
Pike
Esox lucius- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 13
European eels > elvers
Anguilla anguilla- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 13
Chub
Leuciscus cephalus- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 12
Dace
Leuciscus leuciscus- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 12
Perch
Perca fluviatilis- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 10
Ruffe
Gymnocephalus cernuus- First record
- 19 Aug 1983
- Latest record
- 3 Jul 2024
- Survey events
- 9
Bullhead
Cottus gobio- First record
- 4 Jul 2006
- Latest record
- 3 Jul 2024
- Survey events
- 6
Spined loach
Cobitis taenia- First record
- 4 Jul 2006
- Latest record
- 3 Jul 2024
- Survey events
- 5
Tench
Tinca tinca- First record
- 23 Jul 2012
- Latest record
- 3 Jul 2024
- Survey events
- 2
Minnow
Phoxinus phoxinus- First record
- 11 Jun 2015
- Latest record
- 3 Jul 2024
- Survey events
- 2
Flounder
Platichthys flesus- First record
- 23 Jun 1988
- Latest record
- 3 Jul 2024
- Survey events
- 2
Bleak
Alburnus alburnus- First record
- 3 Jul 2024
- Latest record
- 3 Jul 2024
- Survey events
- 1
Lamprey sp. ammocoetes
Petromyzontidae- First record
- 3 Jul 2024
- Latest record
- 3 Jul 2024
- Survey events
- 1
Roach x chub hybrid
Rutilus rutilus x Leuciscus cephalus- First record
- 3 Jul 2024
- Latest record
- 3 Jul 2024
- Survey events
- 1
3-spined stickleback
Gasterosteus aculeatus- First record
- 29 Jun 2009
- Latest record
- 29 Jun 2018
- Survey events
- 3
Common bream
Abramis brama- First record
- 19 Aug 1983
- Latest record
- 23 Jul 2012
- Survey events
- 6
Roach x common bream hybrid
Rutilus rutilus x Abramis brama- First record
- 19 Aug 1983
- Latest record
- 23 Jul 2012
- Survey events
- 5
Stone loach
Barbatula barbatula- First record
- 4 Jul 2006
- Latest record
- 23 Jul 2012
- Survey events
- 2
Zander
Sander lucioperca- First record
- 19 Aug 1983
- Latest record
- 11 Jun 1985
- Survey events
- 2
Rudd
Scardinius erythrophthalmus- First record
- 19 Aug 1983
- Latest record
- 19 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