Environment Agency ecology region
Hertfordshire and North London
409 survey sites hold recorded taxa in this region. Each site page lists what monitoring found and when. None of it establishes access, permission, current presence or fishing quality.
Showing 401–409 of 409
Page 5 of 5
York Way
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 9 Dec 1986
- Latest survey
- 9 Dec 1986
d/s Cuffley Brook confluence
- Survey events
- 5
- Observed taxa
- 7
- First survey
- 3 Dec 2013
- Latest survey
- 5 Oct 2015
d/s Leebridge Rd
- Survey events
- 2
- Observed taxa
- 5
- First survey
- 7 Oct 2009
- Latest survey
- 13 Oct 2010
u/s Ford Waterplace Farm
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 19 Nov 2003
- Latest survey
- 19 Nov 2003
u/s Hunsdon Mill Lock
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 9 Sept 2025
- Latest survey
- 9 Sept 2025
u/s Springfield Marina
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 3 Oct 2013
- Latest survey
- 3 Oct 2013
u/s Tewin Bury farm
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 13 Jun 2006
- Latest survey
- 13 Jun 2006
u/s West Drayton Mill
- Survey events
- 2
- Observed taxa
- 11
- First survey
- 24 Sept 2013
- Latest survey
- 30 Sept 2014
u/s Widewater Lock
- Survey events
- 1
- Observed taxa
- 4
- First survey
- 4 Jun 2013
- Latest survey
- 4 Jun 2013
Provenance
Source and licence
- SourceEnvironment Agency Ecology & Fish Data
- LicenceOpen Government Licence v3.0
- Source copy retrieved23 Jul 2026
- Terms checked23 Jul 2026
- Not assertedAccess, permission, current presence, fishing quality or safety