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.

East Anglia

Mardyke

Survey sites
6
Survey events
46
Recorded taxa
20
Evidence period
17 Mar 1986 – 2 May 2025
Sites latest within 2 years
1
Sites latest over 10 years ago
4
EA waterbody IDs
GB106037028200
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

14 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. PikeMardyke 1River Kennet 47Latest evidence 2 May 2025 · 9 Oct 2025
  2. DaceMardyke 4River Kennet 41Latest evidence 14 May 2007 · 9 Oct 2025
  3. ChubMardyke 3River Kennet 41Latest evidence 14 May 2007 · 9 Oct 2025
  4. PerchMardyke 4River Kennet 38Latest evidence 30 May 2019 · 9 Oct 2025
  5. RoachMardyke 5River Kennet 36Latest evidence 2 May 2025 · 8 Oct 2025
  6. GudgeonMardyke 5River Kennet 31Latest evidence 4 Jun 2019 · 1 Oct 2025
  7. Common breamMardyke 3River Kennet 19Latest evidence 17 May 2007 · 25 Sept 2025
  8. TenchMardyke 5River Kennet 13Latest evidence 2 May 2025 · 13 Nov 2024
  9. European eels > elversMardyke 6River Kennet 5Latest evidence 2 May 2025 · 10 Oct 2025
  10. 3-spined sticklebackMardyke 6River Kennet 4Latest evidence 30 May 2019 · 14 Oct 2025
  11. Common [wild] carpMardyke 5River Kennet 5Latest evidence 2 May 2025 · 24 Oct 2018
  12. RuffeMardyke 1River Kennet 9Latest evidence 30 May 2019 · 5 Nov 2022
  13. Mirror carpMardyke 5River Kennet 4Latest evidence 4 Jun 2019 · 4 Nov 2008
  14. RuddMardyke 5River Kennet 3Latest evidence 2 May 2025 · 4 Nov 2022

Only in the Mardyke survey set

  1. Feral [brown] goldfish5 sites · latest 4 Jun 2019
  2. Flounder5 sites · latest 18 May 2007
  3. Roach x rudd hybrid4 sites · latest 15 Oct 2001
  4. 10-spined stickleback3 sites · latest 4 Jun 2019
  5. Crucian carp3 sites · latest 17 May 2007
  6. European elvers1 site · latest 2 May 2025

Only in the River Kennet survey set

  1. Brown / sea trout47 sites · latest 14 Oct 2025
  2. Bleak27 sites · latest 25 Sept 2025
  3. Barbel22 sites · latest 25 Sept 2025
  4. Grayling21 sites · latest 9 Oct 2025
  5. Atlantic salmon14 sites · latest 25 Oct 2010
  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. European eel9 sites · latest 8 Nov 2013
  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. Pike varieties5 sites · latest 1 Oct 2025
  14. Common carp varieties3 sites · latest 22 Oct 2015
  15. Silver bream3 sites · latest 4 Nov 2022
  16. Brook lamprey > ammocoete1 site · latest 6 Oct 2023
  17. 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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