ARAnglerRadar evidence & rules

Lee Navigation fishing evidence · Hertfordshire and North London

What fish are in the Lee Navigation (Hertfordshire and North London)?

Monitoring has recorded 32 species across 31 surveyed sites on this water, between 1978 and 2025. These are survey records with dates. They do not establish what is present today, that the water is fishable, or that you have permission to fish it.

River evidence passport

Four signals, kept deliberately separate.

The passport shows identity, survey breadth, evidence freshness and trip constraints without turning unlike facts into an opaque “best river” score.

01 · Identity

Lee Navigation (Hertfordshire and North London)

EA ecology area
Hertfordshire and North London
Waterbody IDs
GB106038027960 · GB106038033200 · GB106038033240 · GB106038077851 · GB106038077852
Catchments
Lee
02 · Survey breadth

31 sites · 114 events

32 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.

03 · Freshness by site

Latest 16 Sept 2025

Within 2 years
5 sites
3–5 years
0 sites
6–10 years
2 sites
Older
24 sites

Recorded species

What monitoring has found here

Ordered by how many sites on this water recorded the species. A species not listed has not been recorded by these surveys — which is not the same as being absent.

  1. RoachRutilus rutilus29 siteslatest 16 Sept 2025
  2. PerchPerca fluviatilis28 siteslatest 16 Sept 2025
  3. Pike varietiesEsox lucius22 siteslatest 21 Aug 2024
  4. ChubLeuciscus cephalus19 siteslatest 16 Sept 2025
  5. BleakAlburnus alburnus14 siteslatest 16 Sept 2025
  6. Common breamAbramis brama14 siteslatest 16 Sept 2025
  7. European eelAnguilla anguilla14 siteslatest 9 Aug 2016
  8. DaceLeuciscus leuciscus13 siteslatest 16 Sept 2025
  9. GudgeonGobio gobio12 siteslatest 16 Sept 2025
  10. Tench varietiesTinca tinca12 siteslatest 21 Aug 2024
  11. PikeEsox lucius9 siteslatest 16 Sept 2025
  12. RuffeGymnocephalus cernuus8 siteslatest 11 Jul 2024
  13. TenchTinca tinca7 siteslatest 16 Sept 2025
  14. Common carp varietiesCyprinus carpio6 siteslatest 16 Sept 2025
  15. European eels > elversAnguilla anguilla5 siteslatest 7 Aug 2025
  16. Silver breamAbramis bjoerkna5 siteslatest 9 Jul 2024
  17. Roach x common bream hybridRutilus rutilus x Abramis brama4 siteslatest 5 Aug 2009
  18. Rudd varietiesScardinius erythrophthalmus4 siteslatest 13 Aug 2024
  19. BullheadCottus gobio3 siteslatest 7 Aug 2025
  20. Common [wild] carpCyprinus carpio3 siteslatest 29 Aug 2023
  21. Mirror carpCyprinus carpio3 siteslatest 8 Jul 2025
  22. 3-spined sticklebackGasterosteus aculeatus2 siteslatest 20 Aug 2009
  23. BarbelBarbus barbus2 siteslatest 11 Jul 2024
  24. Brown / sea troutSalmo trutta2 siteslatest 7 Oct 2004
  25. MinnowPhoxinus phoxinus2 siteslatest 7 Aug 2025
  26. ZanderSander lucioperca2 siteslatest 12 Aug 2019
  27. Crucian carpCarassius carassius1 sitelatest 22 Nov 1978
  28. Grass carpCtenopharyngodon idella1 sitelatest 8 Jul 2025
  29. Roach x silver bream hybridRutilus rutilus x Abramis bjoerkna1 sitelatest 5 Sept 2008
  30. RuddScardinius erythrophthalmus1 sitelatest 9 Jul 2024
  31. Stone loachBarbatula barbatula1 sitelatest 30 Aug 2005
  32. Topmouth gudgeonPseudorasbora parva1 sitelatest 2 Sept 2004

Surveyed sites on this water

31 shown, newest survey first

Provenance

Source and licence

  • SourceEnvironment Agency Ecology & Fish Data
  • LicenceOpen Government Licence v3.0
  • Source copy retrieved23 Jul 2026
  • Waterbody nameAs published by the Environment Agency
  • Not assertedCurrent presence, access, permission, fishing quality or safety
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