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.

Cumbria and Lancashire

River Derwent (Cumbria and Lancashire)

Survey sites
38
Survey events
158
Recorded taxa
16
Evidence period
15 Jul 2002 – 15 Jul 2025
Sites latest within 2 years
13
Sites latest over 10 years ago
17
EA waterbody IDs
GB103023074740 · GB103023074770 · GB103023074790 · GB112075070410 · +5 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

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. Brown / sea troutRiver Derwent (Cumbria and Lancashire) 32River Kennet 47Latest evidence 15 Jul 2025 · 14 Oct 2025
  2. PerchRiver Derwent (Cumbria and Lancashire) 2River Kennet 38Latest evidence 11 Jul 2025 · 9 Oct 2025
  3. Atlantic salmonRiver Derwent (Cumbria and Lancashire) 25River Kennet 14Latest evidence 15 Jul 2025 · 25 Oct 2010
  4. RoachRiver Derwent (Cumbria and Lancashire) 1River Kennet 36Latest evidence 26 Jul 2004 · 8 Oct 2025
  5. GraylingRiver Derwent (Cumbria and Lancashire) 8River Kennet 21Latest evidence 14 Jul 2025 · 9 Oct 2025
  6. European eels > elversRiver Derwent (Cumbria and Lancashire) 23River Kennet 5Latest evidence 7 Jul 2023 · 10 Oct 2025
  7. European eelRiver Derwent (Cumbria and Lancashire) 16River Kennet 9Latest evidence 15 Jul 2025 · 8 Nov 2013
  8. BullheadRiver Derwent (Cumbria and Lancashire) 13River Kennet 11Latest evidence 15 Jul 2025 · 14 Oct 2025
  9. MinnowRiver Derwent (Cumbria and Lancashire) 13River Kennet 11Latest evidence 15 Jul 2025 · 14 Oct 2025
  10. Stone loachRiver Derwent (Cumbria and Lancashire) 14River Kennet 8Latest evidence 15 Jul 2025 · 8 Oct 2025
  11. 3-spined sticklebackRiver Derwent (Cumbria and Lancashire) 11River Kennet 4Latest evidence 3 Jul 2023 · 14 Oct 2025

Only in the River Derwent (Cumbria and Lancashire) survey set

  1. Lamprey sp.13 sites · latest 14 Jul 2025
  2. European elvers9 sites · latest 7 Jul 2023
  3. River lamprey > ammocoete3 sites · latest 31 Jul 2013
  4. Lampetra sp.2 sites · latest 16 Aug 2017
  5. River lamprey1 site · latest 9 Oct 2012

Only in the River Kennet survey set

  1. Pike47 sites · latest 9 Oct 2025
  2. Chub41 sites · latest 9 Oct 2025
  3. Dace41 sites · latest 9 Oct 2025
  4. Gudgeon31 sites · latest 1 Oct 2025
  5. Bleak27 sites · latest 25 Sept 2025
  6. Barbel22 sites · latest 25 Sept 2025
  7. Common bream19 sites · latest 25 Sept 2025
  8. Tench13 sites · latest 13 Nov 2024
  9. Roach x common bream hybrid12 sites · latest 25 Oct 2018
  10. Ruffe9 sites · latest 5 Nov 2022
  11. Rainbow trout8 sites · latest 8 Oct 2024
  12. Brook lamprey7 sites · latest 14 Oct 2025
  13. Common [wild] carp5 sites · latest 24 Oct 2018
  14. Pike varieties5 sites · latest 1 Oct 2025
  15. Mirror carp4 sites · latest 4 Nov 2008
  16. Common carp varieties3 sites · latest 22 Oct 2015
  17. Rudd3 sites · latest 4 Nov 2022
  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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