ARAnglerRadar evidence & rules

Compare river fishing evidence · England

Same facts.
No winner score.

Choose two named waters and compare the evidence that actually exists. Survey effort, species records and freshness are shown separately because none proves access, current presence or fishing quality.

Hertfordshire and North London

Lee Navigation (Hertfordshire and North London)

Survey sites
31
Survey events
114
Recorded taxa
32
Evidence period
5 Apr 1978 – 16 Sept 2025
Sites latest within 2 years
5
Sites latest over 10 years ago
24
EA waterbody IDs
GB106038027960 · GB106038033200 · GB106038033240 · GB106038077851 · +1 more
Access status
Not established by survey data
Thames

River Kennet

Survey sites
56
Survey events
264
Recorded taxa
31
Evidence period
28 Sept 1999 – 14 Oct 2025
Sites latest within 2 years
16
Sites latest over 10 years ago
31
EA waterbody IDs
GB106039017420 · GB106039023120 · GB106039023140 · GB106039023172
Access status
Not established by survey data

Overlap

25 recorded taxa appear in both survey sets

The site counts are shown per water. A higher count can reflect more monitoring sites, not a larger or healthier population.

  1. PerchLee Navigation (Hertfordshire and North London) 28River Kennet 38Latest evidence 16 Sept 2025 · 9 Oct 2025
  2. RoachLee Navigation (Hertfordshire and North London) 29River Kennet 36Latest evidence 16 Sept 2025 · 8 Oct 2025
  3. ChubLee Navigation (Hertfordshire and North London) 19River Kennet 41Latest evidence 16 Sept 2025 · 9 Oct 2025
  4. PikeLee Navigation (Hertfordshire and North London) 9River Kennet 47Latest evidence 16 Sept 2025 · 9 Oct 2025
  5. DaceLee Navigation (Hertfordshire and North London) 13River Kennet 41Latest evidence 16 Sept 2025 · 9 Oct 2025
  6. Brown / sea troutLee Navigation (Hertfordshire and North London) 2River Kennet 47Latest evidence 7 Oct 2004 · 14 Oct 2025
  7. GudgeonLee Navigation (Hertfordshire and North London) 12River Kennet 31Latest evidence 16 Sept 2025 · 1 Oct 2025
  8. BleakLee Navigation (Hertfordshire and North London) 14River Kennet 27Latest evidence 16 Sept 2025 · 25 Sept 2025
  9. Common breamLee Navigation (Hertfordshire and North London) 14River Kennet 19Latest evidence 16 Sept 2025 · 25 Sept 2025
  10. Pike varietiesLee Navigation (Hertfordshire and North London) 22River Kennet 5Latest evidence 21 Aug 2024 · 1 Oct 2025
  11. BarbelLee Navigation (Hertfordshire and North London) 2River Kennet 22Latest evidence 11 Jul 2024 · 25 Sept 2025
  12. European eelLee Navigation (Hertfordshire and North London) 14River Kennet 9Latest evidence 9 Aug 2016 · 8 Nov 2013
  13. TenchLee Navigation (Hertfordshire and North London) 7River Kennet 13Latest evidence 16 Sept 2025 · 13 Nov 2024
  14. RuffeLee Navigation (Hertfordshire and North London) 8River Kennet 9Latest evidence 11 Jul 2024 · 5 Nov 2022
  15. Roach x common bream hybridLee Navigation (Hertfordshire and North London) 4River Kennet 12Latest evidence 5 Aug 2009 · 25 Oct 2018
  16. BullheadLee Navigation (Hertfordshire and North London) 3River Kennet 11Latest evidence 7 Aug 2025 · 14 Oct 2025
  17. MinnowLee Navigation (Hertfordshire and North London) 2River Kennet 11Latest evidence 7 Aug 2025 · 14 Oct 2025
  18. European eels > elversLee Navigation (Hertfordshire and North London) 5River Kennet 5Latest evidence 7 Aug 2025 · 10 Oct 2025
  19. Common carp varietiesLee Navigation (Hertfordshire and North London) 6River Kennet 3Latest evidence 16 Sept 2025 · 22 Oct 2015
  20. Stone loachLee Navigation (Hertfordshire and North London) 1River Kennet 8Latest evidence 30 Aug 2005 · 8 Oct 2025
  21. Silver breamLee Navigation (Hertfordshire and North London) 5River Kennet 3Latest evidence 9 Jul 2024 · 4 Nov 2022
  22. Common [wild] carpLee Navigation (Hertfordshire and North London) 3River Kennet 5Latest evidence 29 Aug 2023 · 24 Oct 2018
  23. Mirror carpLee Navigation (Hertfordshire and North London) 3River Kennet 4Latest evidence 8 Jul 2025 · 4 Nov 2008
  24. 3-spined sticklebackLee Navigation (Hertfordshire and North London) 2River Kennet 4Latest evidence 20 Aug 2009 · 14 Oct 2025
  25. RuddLee Navigation (Hertfordshire and North London) 1River Kennet 3Latest evidence 9 Jul 2024 · 4 Nov 2022

Only in the Lee Navigation (Hertfordshire and North London) survey set

  1. Tench varieties12 sites · latest 21 Aug 2024
  2. Rudd varieties4 sites · latest 13 Aug 2024
  3. Zander2 sites · latest 12 Aug 2019
  4. Crucian carp1 site · latest 22 Nov 1978
  5. Grass carp1 site · latest 8 Jul 2025
  6. Roach x silver bream hybrid1 site · latest 5 Sept 2008
  7. Topmouth gudgeon1 site · latest 2 Sept 2004

Only in the River Kennet survey set

  1. Grayling21 sites · latest 9 Oct 2025
  2. Atlantic salmon14 sites · latest 25 Oct 2010
  3. Rainbow trout8 sites · latest 8 Oct 2024
  4. Brook lamprey7 sites · latest 14 Oct 2025
  5. Brook lamprey > ammocoete1 site · latest 6 Oct 2023
  6. Golden goldfish1 site · latest 12 Nov 2009

Method and boundary

Comparison, not prediction.

  • SourceEnvironment Agency Ecology & Fish Data
  • LicenceOpen Government Licence v3.0
  • Source copy retrieved23 Jul 2026
  • CoordinatesNot published on this page
  • Not assertedAccess, current presence, abundance, catch prospects or safety
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