AnglerRadar / Compare rivers 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
Survey sites 14
Survey events 33
Recorded taxa 27
Evidence period 2 Sept 1993 – 13 Apr 2026
Sites latest within 2 years 2
Sites latest over 10 years ago 7
EA waterbody IDs GB106038033310 · GB106038040110
Access status Not established by survey data Thames
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
20 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.
Pike Beane 7 River Kennet 47 Latest evidence 14 Jun 2024 · 9 Oct 2025 Brown / sea trout Beane 2 River Kennet 47 Latest evidence 14 Jun 2024 · 14 Oct 2025 Perch Beane 10 River Kennet 38 Latest evidence 13 Apr 2026 · 9 Oct 2025 Chub Beane 4 River Kennet 41 Latest evidence 15 Jun 2023 · 9 Oct 2025 Roach Beane 8 River Kennet 36 Latest evidence 13 Apr 2026 · 8 Oct 2025 Dace Beane 1 River Kennet 41 Latest evidence 14 Jun 2024 · 9 Oct 2025 Gudgeon Beane 4 River Kennet 31 Latest evidence 14 Jun 2024 · 1 Oct 2025 Grayling Beane 1 River Kennet 21 Latest evidence 14 Jun 2024 · 9 Oct 2025 Common bream Beane 1 River Kennet 19 Latest evidence 21 Sept 1993 · 25 Sept 2025 Tench Beane 2 River Kennet 13 Latest evidence 29 Oct 2003 · 13 Nov 2024 Bullhead Beane 2 River Kennet 11 Latest evidence 14 Jun 2024 · 14 Oct 2025 Minnow Beane 2 River Kennet 11 Latest evidence 13 Apr 2026 · 14 Oct 2025 Pike varieties Beane 6 River Kennet 5 Latest evidence 18 Aug 2011 · 1 Oct 2025 Stone loach Beane 2 River Kennet 8 Latest evidence 13 Apr 2026 · 8 Oct 2025 Brook lamprey Beane 2 River Kennet 7 Latest evidence 18 Oct 2021 · 14 Oct 2025 Rainbow trout Beane 1 River Kennet 8 Latest evidence 23 Sept 1993 · 8 Oct 2024 3-spined stickleback Beane 1 River Kennet 4 Latest evidence 13 Apr 2023 · 14 Oct 2025 Common carp varieties Beane 1 River Kennet 3 Latest evidence 9 Oct 2003 · 22 Oct 2015 Rudd Beane 1 River Kennet 3 Latest evidence 15 Jun 2023 · 4 Nov 2022 Golden goldfish Beane 1 River Kennet 1 Latest evidence 28 Aug 2013 · 12 Nov 2009 Only in the Beane survey set Rudd varieties 3 sites · latest 13 May 2008 Tench varieties 3 sites · latest 13 May 2008 10-spined stickleback 2 sites · latest 28 Aug 2013 Crucian carp 1 site · latest 10 Sept 1993 Golden orfe 1 site · latest 29 Oct 2003 Lamprey sp. 1 site · latest 13 May 2008 Roach x rudd hybrid 1 site · latest 10 Sept 1993 Only in the River Kennet survey set Bleak 27 sites · latest 25 Sept 2025 Barbel 22 sites · latest 25 Sept 2025 Atlantic salmon 14 sites · latest 25 Oct 2010 Roach x common bream hybrid 12 sites · latest 25 Oct 2018 European eel 9 sites · latest 8 Nov 2013 Ruffe 9 sites · latest 5 Nov 2022 Common [wild] carp 5 sites · latest 24 Oct 2018 European eels > elvers 5 sites · latest 10 Oct 2025 Mirror carp 4 sites · latest 4 Nov 2008 Silver bream 3 sites · latest 4 Nov 2022 Brook lamprey > ammocoete 1 site · latest 6 Oct 2023 Method and boundary
Comparison, not prediction. Source Environment Agency Ecology & Fish Data Licence Open Government Licence v3.0 Source copy retrieved 23 Jul 2026 Coordinates Not published on this page Not asserted Access, current presence, abundance, catch prospects or safety