Historic monitoring evidence · Environment Agency
Swanton Morley
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.
Chub
Leuciscus cephalus- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 21
Dace
Leuciscus leuciscus- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 21
Gudgeon
Gobio gobio- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 21
Roach
Rutilus rutilus- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 21
Minnow
Phoxinus phoxinus- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 21
Pike
Esox lucius- First record
- 19 Jul 1990
- Latest record
- 10 Sept 2025
- Survey events
- 20
Perch
Perca fluviatilis- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 19
Bullhead
Cottus gobio- First record
- 19 Jul 1990
- Latest record
- 10 Sept 2025
- Survey events
- 16
Stone loach
Barbatula barbatula- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 14
Brown / sea trout
Salmo trutta- First record
- 23 Jun 1986
- Latest record
- 10 Sept 2025
- Survey events
- 10
Brook lamprey ammocoetes
Lampetra planeri- First record
- 12 Jul 2019
- Latest record
- 10 Sept 2025
- Survey events
- 3
Common bream
Abramis brama- First record
- 14 Jun 1994
- Latest record
- 9 Oct 2023
- Survey events
- 4
Rudd
Scardinius erythrophthalmus- First record
- 8 Sept 2018
- Latest record
- 9 Oct 2023
- Survey events
- 3
Tench
Tinca tinca- First record
- 6 May 1997
- Latest record
- 5 Aug 2022
- Survey events
- 3
European eels > elvers
Anguilla anguilla- First record
- 23 Jun 1986
- Latest record
- 12 Jul 2019
- Survey events
- 15
Lamprey sp. > ammocoete
Petromyzontidae- First record
- 19 Sept 2006
- Latest record
- 8 Sept 2018
- Survey events
- 3
3-spined stickleback
Gasterosteus aculeatus- First record
- 19 Jul 1990
- Latest record
- 12 Oct 2017
- Survey events
- 3
Lampetra sp. ammocoetes
Lampetra- First record
- 13 Aug 2013
- Latest record
- 12 Oct 2017
- Survey events
- 2
Brook lamprey > ammocoete
Lampetra planeri- First record
- 23 Sept 2003
- Latest record
- 13 Sept 2016
- Survey events
- 4
Lamprey sp. ammocoetes
Petromyzontidae- First record
- 16 Jul 2015
- Latest record
- 16 Jul 2015
- Survey events
- 1
Lampetra sp. > ammocoete
Lampetra- First record
- 5 Sept 2014
- Latest record
- 5 Sept 2014
- Survey events
- 1
Roach x common bream hybrid
Rutilus rutilus x Abramis brama- First record
- 5 Sept 2014
- Latest record
- 5 Sept 2014
- Survey events
- 1
European eel
Anguilla anguilla- First record
- 23 Sept 2003
- Latest record
- 23 Sept 2003
- Survey events
- 1
Brook lamprey
Lampetra planeri- First record
- 14 Jun 1994
- Latest record
- 14 Jun 1994
- 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