Historic monitoring evidence · Environment Agency
Moor Mead Bridge
Hertfordshire and North London · 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.
Barbel
Barbus barbus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Chub
Leuciscus cephalus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Dace
Leuciscus leuciscus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Gudgeon
Gobio gobio- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Roach
Rutilus rutilus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Tench
Tinca tinca- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Perch
Perca fluviatilis- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
European eel
Anguilla anguilla- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
European elvers
Anguilla anguilla- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
3-spined stickleback
Gasterosteus aculeatus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Minnow
Phoxinus phoxinus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Stone loach
Barbatula barbatula- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Flounder
Platichthys flesus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- Survey events
- 1
Chub x dace hybrid
Leuciscus cephalus x Leuciscus leuciscus- First record
- 25 Mar 2000
- Latest record
- 25 Mar 2000
- 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