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

Roding

Survey sites
30
Survey events
163
Recorded taxa
35
Evidence period
3 Mar 1990 – 23 Apr 2026
Sites latest within 2 years
5
Sites latest over 10 years ago
18
EA waterbody IDs
GB106037028140 · GB106037028170 · GB106037028180 · GB106037033500
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

22 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. DaceRoding 25River Kennet 41Latest evidence 30 Sept 2025 · 9 Oct 2025
  2. PikeRoding 19River Kennet 47Latest evidence 23 Apr 2026 · 9 Oct 2025
  3. ChubRoding 21River Kennet 41Latest evidence 23 Apr 2026 · 9 Oct 2025
  4. RoachRoding 25River Kennet 36Latest evidence 23 Apr 2026 · 8 Oct 2025
  5. PerchRoding 18River Kennet 38Latest evidence 8 Aug 2024 · 9 Oct 2025
  6. Brown / sea troutRoding 5River Kennet 47Latest evidence 30 Sept 2025 · 14 Oct 2025
  7. GudgeonRoding 20River Kennet 31Latest evidence 23 Apr 2026 · 1 Oct 2025
  8. MinnowRoding 20River Kennet 11Latest evidence 23 Apr 2026 · 14 Oct 2025
  9. European eelRoding 21River Kennet 9Latest evidence 3 Nov 2021 · 8 Nov 2013
  10. BullheadRoding 19River Kennet 11Latest evidence 23 Apr 2026 · 14 Oct 2025
  11. BleakRoding 1River Kennet 27Latest evidence 15 Aug 2023 · 25 Sept 2025
  12. Stone loachRoding 17River Kennet 8Latest evidence 23 Apr 2026 · 8 Oct 2025
  13. BarbelRoding 1River Kennet 22Latest evidence 23 Nov 2004 · 25 Sept 2025
  14. Pike varietiesRoding 17River Kennet 5Latest evidence 15 Aug 2024 · 1 Oct 2025
  15. Common breamRoding 3River Kennet 19Latest evidence 20 Sept 2002 · 25 Sept 2025
  16. 3-spined sticklebackRoding 14River Kennet 4Latest evidence 23 Apr 2026 · 14 Oct 2025
  17. European eels > elversRoding 12River Kennet 5Latest evidence 23 Apr 2026 · 10 Oct 2025
  18. TenchRoding 4River Kennet 13Latest evidence 11 Apr 2019 · 13 Nov 2024
  19. Common [wild] carpRoding 3River Kennet 5Latest evidence 11 Apr 2019 · 24 Oct 2018
  20. RuddRoding 3River Kennet 3Latest evidence 23 Aug 2018 · 4 Nov 2022
  21. Mirror carpRoding 2River Kennet 4Latest evidence 11 Apr 2019 · 4 Nov 2008
  22. Common carp varietiesRoding 1River Kennet 3Latest evidence 23 Jul 2024 · 22 Oct 2015

Only in the Roding survey set

  1. 10-spined stickleback6 sites · latest 10 Sept 2021
  2. Flounder5 sites · latest 23 Jul 2024
  3. European elvers3 sites · latest 8 Aug 2018
  4. Tench varieties3 sites · latest 24 May 1992
  5. Rudd varieties2 sites · latest 22 Jun 2010
  6. European glass eels1 site · latest 13 Sept 2006
  7. Feral [brown] goldfish1 site · latest 10 Sept 2021
  8. Goby sp.1 site · latest 30 Jul 1993
  9. Right sided flatfish sp.1 site · latest 14 Jul 2009
  10. Sea bass1 site · latest 30 Jul 1993
  11. Smelt1 site · latest 30 Jul 1993
  12. Sprat1 site · latest 30 Jul 1993
  13. Thick lipped grey mullet1 site · latest 30 Jul 1993

Only in the River Kennet survey set

  1. Grayling21 sites · latest 9 Oct 2025
  2. Atlantic salmon14 sites · latest 25 Oct 2010
  3. Roach x common bream hybrid12 sites · latest 25 Oct 2018
  4. Ruffe9 sites · latest 5 Nov 2022
  5. Rainbow trout8 sites · latest 8 Oct 2024
  6. Brook lamprey7 sites · latest 14 Oct 2025
  7. Silver bream3 sites · latest 4 Nov 2022
  8. Brook lamprey > ammocoete1 site · latest 6 Oct 2023
  9. 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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