ARAnglerRadar evidence & rules

Lee fishing evidence · Hertfordshire and North London

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

Monitoring has recorded 48 species across 38 surveyed sites on this water, between 1978 and 2026. 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 (Hertfordshire and North London)

EA ecology area
Hertfordshire and North London
Waterbody IDs
GB106038027960 · GB106038033200 · GB106038033230 · GB106038033240 · GB106038033391 · GB106038033392 · +3 more
Catchments
Lee
02 · Survey breadth

38 sites · 204 events

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

03 · Freshness by site

Latest 9 Jun 2026

Within 2 years
8 sites
3–5 years
1 sites
6–10 years
6 sites
Older
23 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 rutilus30 siteslatest 9 Jun 2026
  2. ChubLeuciscus cephalus26 siteslatest 9 Jun 2026
  3. GudgeonGobio gobio25 siteslatest 9 Jun 2026
  4. PerchPerca fluviatilis24 siteslatest 9 Jun 2026
  5. DaceLeuciscus leuciscus22 siteslatest 9 Jun 2026
  6. BarbelBarbus barbus19 siteslatest 9 Jun 2026
  7. PikeEsox lucius16 siteslatest 11 Sept 2025
  8. MinnowPhoxinus phoxinus15 siteslatest 9 Jun 2026
  9. Common breamAbramis brama14 siteslatest 11 Sept 2025
  10. Pike varietiesEsox lucius14 siteslatest 23 Jun 2011
  11. BleakAlburnus alburnus13 siteslatest 11 Sept 2025
  12. Common [wild] carpCyprinus carpio11 siteslatest 18 Jun 2024
  13. European eelAnguilla anguilla11 siteslatest 2 Jun 2015
  14. TenchTinca tinca11 siteslatest 15 Jul 2025
  15. 3-spined sticklebackGasterosteus aculeatus10 siteslatest 3 Jul 2025
  16. BullheadCottus gobio9 siteslatest 11 Sept 2025
  17. Stone loachBarbatula barbatula9 siteslatest 9 Jun 2026
  18. Common carp varietiesCyprinus carpio8 siteslatest 3 Jul 2025
  19. European eels > elversAnguilla anguilla8 siteslatest 11 Sept 2025
  20. Tench varietiesTinca tinca8 siteslatest 22 Aug 2011
  21. Brown / sea troutSalmo trutta7 siteslatest 31 Jul 2025
  22. Mirror carpCyprinus carpio5 siteslatest 22 Mar 2012
  23. Crucian carpCarassius carassius4 siteslatest 14 Feb 2017
  24. GraylingThymallus thymallus4 siteslatest 31 Jul 2025
  25. RuddScardinius erythrophthalmus4 siteslatest 31 Jul 2025
  26. Rudd varietiesScardinius erythrophthalmus4 siteslatest 8 Jul 2009
  27. RuffeGymnocephalus cernuus4 siteslatest 27 Jul 2022
  28. 10-spined sticklebackPungitius pungitius3 siteslatest 9 Aug 2007
  29. Brook lamprey > ammocoeteLampetra planeri3 siteslatest 7 Aug 2007
  30. Roach x common bream hybridRutilus rutilus x Abramis brama3 siteslatest 23 Aug 2016
  31. Brook lampreyLampetra planeri2 siteslatest 29 Jul 2025
  32. Roach x dace hybridRutilus rutilus x Leuciscus leuciscus2 siteslatest 10 Jul 2018
  33. Silver breamAbramis bjoerkna2 siteslatest 25 Aug 2010
  34. Bleak x roach hybridAlburnus alburnus x Rutilus rutilus1 sitelatest 13 Aug 2009
  35. Brook lamprey ammocoetesLampetra planeri1 sitelatest 22 Sept 2004
  36. Common gobyPomatoschistus microps1 sitelatest 29 Sept 2004
  37. European elversAnguilla anguilla1 sitelatest 11 Sept 2025
  38. Feral [brown] goldfishCarassius auratus1 sitelatest 3 Aug 2022
  39. FlounderPlatichthys flesus1 sitelatest 17 Aug 2023
  40. Ghost carpCyprinus carpio1 sitelatest 9 Aug 2006
  41. Goby sp.Gobiidae1 sitelatest 5 Sept 2007
  42. Koi carpCyprinus carpio1 sitelatest 7 Jul 2016
  43. Lamprey sp.Petromyzontidae1 sitelatest 15 Jul 2009
  44. Lamprey sp. > ammocoetePetromyzontidae1 sitelatest 27 Jul 2022
  45. Rainbow troutOncorhynchus mykiss1 sitelatest 25 Jun 2024
  46. Roach x chub hybridRutilus rutilus x Leuciscus cephalus1 sitelatest 22 Aug 2011
  47. Roach x rudd hybridRutilus rutilus x Scardinius erythrophthalmus1 sitelatest 15 Sept 2004
  48. Sea bassDicentrarchus labrax1 sitelatest 29 Sept 2004

Surveyed sites on this water

38 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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