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 201–300 of 409
Page 3 of 5
Large Chess Restore Hope
- Survey events
- 3
- Observed taxa
- 7
- First survey
- 6 Mar 2019
- Latest survey
- 6 Oct 2025
Latchford flyfishers
- Survey events
- 1
- Observed taxa
- 1
- First survey
- 19 Apr 2022
- Latest survey
- 19 Apr 2022
Latimer
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 4 Jul 2006
- Latest survey
- 4 Jul 2006
Latimer Island
- Survey events
- 1
- Observed taxa
- 4
- First survey
- 25 Nov 1987
- Latest survey
- 25 Nov 1987
Latimer Water Meadows
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 7 Mar 2019
- Latest survey
- 7 Mar 2019
Lea Bridge
- Survey events
- 1
- Observed taxa
- 2
- First survey
- 22 Jul 2013
- Latest survey
- 22 Jul 2013
Leaden Roding
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 16 Mar 1990
- Latest survey
- 16 Mar 1990
Leasey Bridge - Batford Wier
- Survey events
- 1
- Observed taxa
- 1
- First survey
- 25 Oct 2006
- Latest survey
- 25 Oct 2006
Limbry Park
- Survey events
- 2
- Observed taxa
- 2
- First survey
- 10 May 2006
- Latest survey
- 8 May 2014
Little Canfield
- Survey events
- 3
- Observed taxa
- 6
- First survey
- 3 Mar 1990
- Latest survey
- 27 Sept 2007
Little Chess Restore Hope
- Survey events
- 3
- Observed taxa
- 6
- First survey
- 6 Mar 2019
- Latest survey
- 6 Oct 2025
Little Parndon
- Survey events
- 3
- Observed taxa
- 2
- First survey
- 8 Apr 2011
- Latest survey
- 16 Apr 2024
Littlebury Mill
- Survey events
- 14
- Observed taxa
- 13
- First survey
- 4 Sept 2002
- Latest survey
- 22 Oct 2024
Longbridge Way, Uxbridge
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 29 May 2012
- Latest survey
- 29 May 2012
Loudwater Lane
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 11 Jul 2006
- Latest survey
- 11 Jul 2006
Loudwater Lane (Masonic Lodge)
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 24 Nov 1987
- Latest survey
- 24 Nov 1987
Loughton
- Survey events
- 1
- Observed taxa
- 9
- First survey
- 6 Sept 2002
- Latest survey
- 6 Sept 2002
Lower Cattlegate
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 18 Jun 1992
- Latest survey
- 18 Jun 1992
Luxborough Lane
- Survey events
- 7
- Observed taxa
- 15
- First survey
- 12 May 1992
- Latest survey
- 8 Sept 2016
Manifold Ditch
- Survey events
- 1
- Observed taxa
- 3
- First survey
- 6 Oct 1992
- Latest survey
- 6 Oct 1992
Maple Cross
- Survey events
- 1
- Observed taxa
- 14
- First survey
- 12 Feb 1986
- Latest survey
- 12 Feb 1986
Marsh Farm
- Survey events
- 3
- Observed taxa
- 8
- First survey
- 12 Oct 2017
- Latest survey
- 23 Oct 2019
Marshgate Drive (Dicker Mill Stream)
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 17 Sept 1992
- Latest survey
- 17 Sept 1992
Mayes Brook
- Survey events
- 4
- Observed taxa
- 10
- First survey
- 23 Apr 2008
- Latest survey
- 16 Apr 2026
Maynards
- Survey events
- 2
- Observed taxa
- 4
- First survey
- 12 Jun 2024
- Latest survey
- 30 Sept 2025
Merchant Taylor
- Survey events
- 4
- Observed taxa
- 8
- First survey
- 27 Jun 2007
- Latest survey
- 21 Sept 2015
Merchant Taylor Backwater
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 16 Sept 2013
- Latest survey
- 16 Sept 2013
Merchant Taylors CPUE
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 21 Sept 2015
- Latest survey
- 21 Sept 2015
Mill End
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 11 Feb 1986
- Latest survey
- 11 Feb 1986
Mill Lane, Watton At Stone
- Survey events
- 7
- Observed taxa
- 7
- First survey
- 16 Sept 1993
- Latest survey
- 13 Apr 2026
Mill Platt
- Survey events
- 3
- Observed taxa
- 8
- First survey
- 6 Oct 2005
- Latest survey
- 4 Oct 2017
Milupa Factory
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 20 Feb 1986
- Latest survey
- 20 Feb 1986
Moor Lane
- Survey events
- 4
- Observed taxa
- 14
- First survey
- 15 Jun 2000
- Latest survey
- 5 Sept 2017
Moor Mead Bridge
- Survey events
- 1
- Observed taxa
- 14
- First survey
- 25 Mar 2000
- Latest survey
- 25 Mar 2000
Moor Mill
- Survey events
- 2
- Observed taxa
- 5
- First survey
- 20 Oct 2009
- Latest survey
- 11 Nov 2016
Moor Roundabout
- Survey events
- 2
- Observed taxa
- 9
- First survey
- 4 Mar 1986
- Latest survey
- 12 Mar 1986
Moor roundabout 2
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 12 Mar 1986
- Latest survey
- 12 Mar 1986
Moreton
- Survey events
- 10
- Observed taxa
- 11
- First survey
- 8 Apr 1990
- Latest survey
- 22 Aug 2024
Mount Loops
- Survey events
- 3
- Observed taxa
- 10
- First survey
- 7 Mar 1993
- Latest survey
- 14 Aug 2003
Mountwood Ford
- Survey events
- 17
- Observed taxa
- 14
- First survey
- 1 Dec 1987
- Latest survey
- 7 Oct 2025
Much Hadham
- Survey events
- 1
- Observed taxa
- 4
- First survey
- 30 Jun 2006
- Latest survey
- 30 Jun 2006
Much Hadham Fully Quantitative
- Survey events
- 2
- Observed taxa
- 1
- First survey
- 30 Sept 2012
- Latest survey
- 9 Oct 2018
Nanny Ford
- Survey events
- 1
- Observed taxa
- 1
- First survey
- 16 May 2006
- Latest survey
- 16 May 2006
Nazeing New Road
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 28 May 1992
- Latest survey
- 28 May 1992
Nether Street
- Survey events
- 7
- Observed taxa
- 12
- First survey
- 23 Feb 1999
- Latest survey
- 10 Sept 2021
New Cut
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 9 Jul 1992
- Latest survey
- 9 Jul 1992
New Gauge
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 4 Jul 1978
- Latest survey
- 4 Jul 1978
ORSU (C) In
- Survey events
- 1
- Observed taxa
- 1
- First survey
- 11 Oct 2004
- Latest survey
- 11 Oct 2004
ORSU (C) Out
- Survey events
- 1
- Observed taxa
- 2
- First survey
- 11 Oct 2004
- Latest survey
- 11 Oct 2004
Oakhill Park
- Survey events
- 3
- Observed taxa
- 5
- First survey
- 12 Apr 2012
- Latest survey
- 8 Apr 2026
Old Mill Lane
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 12 Jun 1986
- Latest survey
- 12 Jun 1986
Packetboat Lane
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 27 Feb 1986
- Latest survey
- 27 Feb 1986
Panshanger quarry
- Survey events
- 18
- Observed taxa
- 17
- First survey
- 15 Jun 2006
- Latest survey
- 2 Sept 2025
Panshanger quarry broadwater bypass channel
- Survey events
- 2
- Observed taxa
- 2
- First survey
- 22 Oct 2010
- Latest survey
- 21 Sept 2011
Passingford Bridge
- Survey events
- 7
- Observed taxa
- 11
- First survey
- 28 Apr 1992
- Latest survey
- 31 Jul 2014
Piccotts End
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 28 Feb 2002
- Latest survey
- 28 Feb 2002
Picketts Lock
- Survey events
- 18
- Observed taxa
- 20
- First survey
- 16 Mar 1993
- Latest survey
- 10 Jul 2025
Piggotts Farm M11 section
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 6 May 1992
- Latest survey
- 6 May 1992
Pishiobury Meander
- Survey events
- 1
- Observed taxa
- 4
- First survey
- 29 Apr 2009
- Latest survey
- 29 Apr 2009
Ponders End
- Survey events
- 17
- Observed taxa
- 22
- First survey
- 29 Nov 1978
- Latest survey
- 5 Aug 2025
Powder Mill Cut
- Survey events
- 6
- Observed taxa
- 11
- First survey
- 22 Oct 1992
- Latest survey
- 27 Jul 2015
Poyle Channel
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 7 May 1986
- Latest survey
- 7 May 1986
Queensbury Avenue
- Survey events
- 1
- Observed taxa
- 2
- First survey
- 13 Oct 1994
- Latest survey
- 13 Oct 1994
Quinbury Farm
- Survey events
- 2
- Observed taxa
- 4
- First survey
- 19 Sept 2013
- Latest survey
- 14 Oct 2019
Rammey Marsh Sluice - David Stoker
- Survey events
- 1
- Observed taxa
- 9
- First survey
- 14 Apr 2009
- Latest survey
- 14 Apr 2009
Red Spinners Bayford
- Survey events
- 5
- Observed taxa
- 6
- First survey
- 4 Aug 2017
- Latest survey
- 17 Jul 2025
Redbournbury fishery
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 9 Jun 2006
- Latest survey
- 9 Jun 2006
Redbourne
- Survey events
- 1
- Observed taxa
- 1
- First survey
- 16 Oct 2013
- Latest survey
- 16 Oct 2013
Redbridge
- Survey events
- 6
- Observed taxa
- 13
- First survey
- 11 Feb 1999
- Latest survey
- 17 Aug 2006
River Lynch
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 13 Oct 1992
- Latest survey
- 13 Oct 1992
Riverside Walk
- Survey events
- 6
- Observed taxa
- 13
- First survey
- 25 May 2005
- Latest survey
- 10 Oct 2024
Robbie Bell Bridge
- Survey events
- 2
- Observed taxa
- 3
- First survey
- 18 May 2006
- Latest survey
- 17 May 2011
Roding Valley Nature Reserve
- Survey events
- 14
- Observed taxa
- 13
- First survey
- 25 Sept 2002
- Latest survey
- 8 Aug 2024
Roding confluence
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 23 Feb 1990
- Latest survey
- 23 Feb 1990
Rose Farm
- Survey events
- 3
- Observed taxa
- 4
- First survey
- 13 Jul 2006
- Latest survey
- 28 Aug 2024
Rotenone neutralisation zone
- Survey events
- 1
- Observed taxa
- 11
- First survey
- 27 Nov 2013
- Latest survey
- 27 Nov 2013
Rotenone neutralisation zone 2
- Survey events
- 1
- Observed taxa
- 10
- First survey
- 27 Nov 2013
- Latest survey
- 27 Nov 2013
Rotenone treatment zone
- Survey events
- 1
- Observed taxa
- 7
- First survey
- 27 Nov 2013
- Latest survey
- 27 Nov 2013
Roydon Lea Farm
- Survey events
- 2
- Observed taxa
- 5
- First survey
- 3 Apr 2014
- Latest survey
- 18 Apr 2024
Roydon Loop
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 27 Apr 2009
- Latest survey
- 27 Apr 2009
Rush Green
- Survey events
- 2
- Observed taxa
- 3
- First survey
- 27 Jun 2006
- Latest survey
- 24 Jun 2011
Rushgrove Park
- Survey events
- 1
- Observed taxa
- 3
- First survey
- 13 Jun 2013
- Latest survey
- 13 Jun 2013
Rye House
- Survey events
- 3
- Observed taxa
- 12
- First survey
- 26 Apr 1978
- Latest survey
- 30 Mar 2012
Rye end cottages
- Survey events
- 2
- Observed taxa
- 5
- First survey
- 12 Jul 2006
- Latest survey
- 26 Feb 2007
Sarratt Bottom
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 7 Jul 2006
- Latest survey
- 7 Jul 2006
Sarratt Mill
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 3 Dec 1987
- Latest survey
- 3 Dec 1987
Sarratt Mill Bypass Channel
- Survey events
- 1
- Observed taxa
- 1
- First survey
- 16 May 2013
- Latest survey
- 16 May 2013
Sawbridgeworth Loop
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 29 Apr 2009
- Latest survey
- 29 Apr 2009
School/corn mill
- Survey events
- 1
- Observed taxa
- 10
- First survey
- 13 Jun 2006
- Latest survey
- 13 Jun 2006
Scotsbridge Mill
- Survey events
- 7
- Observed taxa
- 13
- First survey
- 9 Jul 2003
- Latest survey
- 10 May 2023
Scotts Bridge
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 15 Dec 1987
- Latest survey
- 15 Dec 1987
Seven Kings Park
- Survey events
- 3
- Observed taxa
- 8
- First survey
- 12 Apr 2011
- Latest survey
- 14 Apr 2026
Shafford Mill
- Survey events
- 3
- Observed taxa
- 7
- First survey
- 6 May 2004
- Latest survey
- 26 Oct 2016
Shafford mill u/s
- Survey events
- 1
- Observed taxa
- 5
- First survey
- 8 Jun 2006
- Latest survey
- 8 Jun 2006
Sheering Mill Lock CPUE
- Survey events
- 1
- Observed taxa
- 8
- First survey
- 21 Aug 2025
- Latest survey
- 21 Aug 2025
Sherrardswood School
- Survey events
- 6
- Observed taxa
- 4
- First survey
- 12 Jul 2017
- Latest survey
- 5 Apr 2023
Shrubbs Farm
- Survey events
- 2
- Observed taxa
- 9
- First survey
- 29 Aug 2013
- Latest survey
- 3 Sept 2019
Silk stream Park
- Survey events
- 2
- Observed taxa
- 3
- First survey
- 29 Sept 1994
- Latest survey
- 12 Sept 2011
Singlers Marsh
- Survey events
- 2
- Observed taxa
- 1
- First survey
- 8 Oct 2014
- Latest survey
- 26 Sept 2024
Slough Arm at B470 Road
- Survey events
- 1
- Observed taxa
- 6
- First survey
- 29 Feb 1988
- Latest survey
- 29 Feb 1988
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