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

Silk Stream

Survey sites
3
Survey events
6
Recorded taxa
9
Evidence period
21 Sept 1994 – 13 Jun 2013
Sites latest within 2 years
0
Sites latest over 10 years ago
3
EA waterbody IDs
GB106039022970
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

6 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. PerchSilk Stream 2River Kennet 38Latest evidence 12 Sept 2011 · 9 Oct 2025
  2. RoachSilk Stream 3River Kennet 36Latest evidence 13 Jun 2013 · 8 Oct 2025
  3. GudgeonSilk Stream 1River Kennet 31Latest evidence 13 Jun 2013 · 1 Oct 2025
  4. Common breamSilk Stream 1River Kennet 19Latest evidence 10 Nov 2005 · 25 Sept 2025
  5. TenchSilk Stream 1River Kennet 13Latest evidence 13 Jun 2013 · 13 Nov 2024
  6. 3-spined sticklebackSilk Stream 1River Kennet 4Latest evidence 10 Nov 2005 · 14 Oct 2025

Only in the Silk Stream survey set

  1. 10-spined stickleback1 site · latest 10 Nov 2005
  2. Common carp x crucian carp hybrid1 site · latest 10 Nov 2005
  3. Tench varieties1 site · latest 12 Sept 2011

Only in the River Kennet survey set

  1. Brown / sea trout47 sites · latest 14 Oct 2025
  2. Pike47 sites · latest 9 Oct 2025
  3. Chub41 sites · latest 9 Oct 2025
  4. Dace41 sites · latest 9 Oct 2025
  5. Bleak27 sites · latest 25 Sept 2025
  6. Barbel22 sites · latest 25 Sept 2025
  7. Grayling21 sites · latest 9 Oct 2025
  8. Atlantic salmon14 sites · latest 25 Oct 2010
  9. Roach x common bream hybrid12 sites · latest 25 Oct 2018
  10. Bullhead11 sites · latest 14 Oct 2025
  11. Minnow11 sites · latest 14 Oct 2025
  12. European eel9 sites · latest 8 Nov 2013
  13. Ruffe9 sites · latest 5 Nov 2022
  14. Rainbow trout8 sites · latest 8 Oct 2024
  15. Stone loach8 sites · latest 8 Oct 2025
  16. Brook lamprey7 sites · latest 14 Oct 2025
  17. Common [wild] carp5 sites · latest 24 Oct 2018
  18. European eels > elvers5 sites · latest 10 Oct 2025
  19. Pike varieties5 sites · latest 1 Oct 2025
  20. Mirror carp4 sites · latest 4 Nov 2008
  21. Common carp varieties3 sites · latest 22 Oct 2015
  22. Rudd3 sites · latest 4 Nov 2022
  23. Silver bream3 sites · latest 4 Nov 2022
  24. Brook lamprey > ammocoete1 site · latest 6 Oct 2023

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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