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

Stort Navigation (Hertfordshire and North London)

Survey sites
6
Survey events
6
Recorded taxa
12
Evidence period
18 Apr 2011 – 9 Sept 2025
Sites latest within 2 years
2
Sites latest over 10 years ago
4
EA waterbody IDs
GB106038033280
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

11 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. PikeStort Navigation (Hertfordshire and North London) 3River Kennet 47Latest evidence 9 Sept 2025 · 9 Oct 2025
  2. PerchStort Navigation (Hertfordshire and North London) 6River Kennet 38Latest evidence 9 Sept 2025 · 9 Oct 2025
  3. ChubStort Navigation (Hertfordshire and North London) 3River Kennet 41Latest evidence 9 Sept 2025 · 9 Oct 2025
  4. DaceStort Navigation (Hertfordshire and North London) 2River Kennet 41Latest evidence 9 Sept 2025 · 9 Oct 2025
  5. RoachStort Navigation (Hertfordshire and North London) 6River Kennet 36Latest evidence 9 Sept 2025 · 8 Oct 2025
  6. GudgeonStort Navigation (Hertfordshire and North London) 3River Kennet 31Latest evidence 21 Apr 2011 · 1 Oct 2025
  7. BleakStort Navigation (Hertfordshire and North London) 4River Kennet 27Latest evidence 9 Sept 2025 · 25 Sept 2025
  8. Common breamStort Navigation (Hertfordshire and North London) 2River Kennet 19Latest evidence 21 Aug 2025 · 25 Sept 2025
  9. European eelStort Navigation (Hertfordshire and North London) 2River Kennet 9Latest evidence 21 Apr 2011 · 8 Nov 2013
  10. Pike varietiesStort Navigation (Hertfordshire and North London) 3River Kennet 5Latest evidence 10 Jun 2011 · 1 Oct 2025
  11. RuddStort Navigation (Hertfordshire and North London) 2River Kennet 3Latest evidence 9 Sept 2025 · 4 Nov 2022

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

  1. Tench varieties3 sites · latest 10 Jun 2011

Only in the River Kennet survey set

  1. Brown / sea trout47 sites · latest 14 Oct 2025
  2. Barbel22 sites · latest 25 Sept 2025
  3. Grayling21 sites · latest 9 Oct 2025
  4. Atlantic salmon14 sites · latest 25 Oct 2010
  5. Tench13 sites · latest 13 Nov 2024
  6. Roach x common bream hybrid12 sites · latest 25 Oct 2018
  7. Bullhead11 sites · latest 14 Oct 2025
  8. Minnow11 sites · latest 14 Oct 2025
  9. Ruffe9 sites · latest 5 Nov 2022
  10. Rainbow trout8 sites · latest 8 Oct 2024
  11. Stone loach8 sites · latest 8 Oct 2025
  12. Brook lamprey7 sites · latest 14 Oct 2025
  13. Common [wild] carp5 sites · latest 24 Oct 2018
  14. European eels > elvers5 sites · latest 10 Oct 2025
  15. 3-spined stickleback4 sites · latest 14 Oct 2025
  16. Mirror carp4 sites · latest 4 Nov 2008
  17. Common carp varieties3 sites · latest 22 Oct 2015
  18. Silver bream3 sites · latest 4 Nov 2022
  19. Brook lamprey > ammocoete1 site · latest 6 Oct 2023
  20. 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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