Historic monitoring evidence · Environment Agency
Henlow
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.
Dace
Leuciscus leuciscus- First record
- 13 Mar 1989
- Latest record
- 8 Oct 2025
- Survey events
- 17
Gudgeon
Gobio gobio- First record
- 13 Mar 1989
- Latest record
- 8 Oct 2025
- Survey events
- 17
Roach
Rutilus rutilus- First record
- 13 Mar 1989
- Latest record
- 8 Oct 2025
- Survey events
- 17
Pike
Esox lucius- First record
- 13 Mar 1989
- Latest record
- 8 Oct 2025
- Survey events
- 17
Chub
Leuciscus cephalus- First record
- 3 Jan 1992
- Latest record
- 8 Oct 2025
- Survey events
- 16
Minnow
Phoxinus phoxinus- First record
- 13 Mar 1989
- Latest record
- 8 Oct 2025
- Survey events
- 16
Perch
Perca fluviatilis- First record
- 3 Jan 1992
- Latest record
- 8 Oct 2025
- Survey events
- 15
Stone loach
Barbatula barbatula- First record
- 13 Mar 1989
- Latest record
- 8 Oct 2025
- Survey events
- 15
Rudd
Scardinius erythrophthalmus- First record
- 16 Jun 2003
- Latest record
- 8 Oct 2025
- Survey events
- 3
Brown / sea trout
Salmo trutta- First record
- 29 May 1998
- Latest record
- 8 Oct 2025
- Survey events
- 2
Bullhead
Cottus gobio- First record
- 13 Mar 1989
- Latest record
- 11 May 2016
- Survey events
- 15
3-spined stickleback
Gasterosteus aculeatus- First record
- 3 May 2000
- Latest record
- 11 May 2016
- Survey events
- 4
Common bream
Abramis brama- First record
- 3 Jan 1992
- Latest record
- 29 May 1998
- Survey events
- 3
European eels > elvers
Anguilla anguilla- First record
- 5 May 1995
- Latest record
- 29 May 1998
- 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