ARAnglerRadar evidence & rules

Alburnus alburnus · England

Where bleak has been recorded

Environment Agency surveys have recorded bleak at 1,392 sites across 317 waters, between 1976 and 2026. These are monitoring records with dates. They do not establish what is present today, nor that you may fish for it.

Waters

Rivers with the most records

Ordered by how many surveyed sites on each water recorded it. Waters with their own page are linked.

  1. Warwickshire Avon39 siteslatest 6 Oct 2025
  2. Upper Thames (Thames)31 siteslatest 16 Oct 2025
  3. Middle Thames (Thames)27 siteslatest 25 Jul 2025
  4. River Kennet27 siteslatest 25 Sept 2025
  5. Great Ouse (Newport Pagnell to Bedford)24 siteslatest 31 Aug 2023
  6. River Cherwell24 siteslatest 11 Jun 2025
  7. Above Wansford23 siteslatest 17 Sept 2018
  8. Severn - Confl Vyrnwy to Bewdley (main river)21 siteslatest 19 Sept 2023
  9. TWARP reaches of the Thames21 siteslatest 20 Jul 2025
  10. Great Ouse (Bedford to Brampton)20 siteslatest 5 Oct 2018
  11. Great Ouse (Brampton to Earith)20 siteslatest 15 Oct 2025
  12. River Ouse (Yorkshire)19 siteslatest 22 Jun 2026
  13. River Thame19 siteslatest 17 Sept 2025
  14. Medway - main river17 siteslatest 18 Jun 2026
  15. R.Ancholme Subcatchments17 siteslatest 23 Apr 2018
  16. Arborfield15 siteslatest 26 Jun 2012
  17. Colne (Hertfordshire and North London)15 siteslatest 4 Jul 2024
  18. River Ure (Yorkshire)15 siteslatest 16 Jul 2025
  19. Above Wellingborough14 siteslatest 25 Oct 2013
  20. Lee Navigation (Hertfordshire and North London)14 siteslatest 16 Sept 2025
  21. River Stour Middle (East Anglia)14 siteslatest 11 Aug 2025
  22. Soar14 siteslatest 23 Sept 2025
  23. Lee (Hertfordshire and North London)13 siteslatest 11 Sept 2025
  24. Oxford Watercourses13 siteslatest 4 Apr 2019
  25. Trent (East Midlands)13 siteslatest 19 Sept 2025
  26. Below Wansford12 siteslatest 18 Sept 2018
  27. Counter Drain12 siteslatest 10 Jun 2026
  28. Steeping FMU12 siteslatest 3 May 2019
  29. Wye (East Midlands)12 siteslatest 6 Oct 2022
  30. DS Wissey11 siteslatest 6 Aug 2024
  31. South Forty Foot Drain11 siteslatest 6 Aug 2007
  32. Wey Combined11 siteslatest 7 Jul 2023
  33. DS Lark10 siteslatest 17 Sept 2024
  34. Old West River10 siteslatest 13 Sept 2023
  35. Relief Channel (East Anglia)10 siteslatest 30 Aug 2005
  36. Severn - Bewdley to confl Avon (main river)10 siteslatest 22 Apr 2025
  37. Tinwell to Peakirk10 siteslatest 10 Oct 2024
  38. Lower Glen9 siteslatest 24 Oct 2017
  39. Rmc9 siteslatest 1 May 2024
  40. River Derwent (Yorkshire)9 siteslatest 19 Aug 2024
  41. River Stour Upper (East Anglia)9 siteslatest 3 Sept 2024
  42. DS Cam8 siteslatest 2 Oct 2025
  43. Delph8 siteslatest 11 Jun 2009
  44. Ely Ouse8 siteslatest 10 Oct 2023
  45. Hobhole Drain8 siteslatest 26 Sept 2019
  46. Idle8 siteslatest 25 Apr 2017
  47. River Don8 siteslatest 12 Aug 2025
  48. River Nene (Old Course)8 siteslatest 5 Jul 2023
  49. Romney - Old Windsor8 siteslatest 29 Jul 2025
  50. Arun (Solent and South Downs)7 siteslatest 21 Oct 2025
  51. Bristol Avon main river7 siteslatest 3 Sept 2024
  52. Cut-Off Channel7 siteslatest 22 Jun 2023
  53. Main river sites7 siteslatest 30 May 2018
  54. Moretons Leam7 siteslatest 6 Nov 2025
  55. North Level Main Drain7 siteslatest 13 Apr 2016
  56. Peakirk downstream7 siteslatest 24 Sept 1996
  57. River Anker7 siteslatest 30 Apr 2026
  58. River Loddon7 siteslatest 1 May 2025
  59. River Nidd (Yorkshire)7 siteslatest 13 Aug 2025
  60. River Teme7 siteslatest 11 Sept 2023
  61. South Holland Main Drain7 siteslatest 4 Jun 1997
  62. Above Oundle6 siteslatest 14 Sept 2018
  63. Beult6 siteslatest 11 Jun 2025
  64. Derwent (East Midlands)6 siteslatest 19 Sept 2025
  65. Forty Foot Drain6 siteslatest 18 Jul 2023
  66. Jubilee River6 siteslatest 23 Aug 2013
  67. River Tame6 siteslatest 24 Oct 2017
  68. River Trent (West Midlands)6 siteslatest 11 Sept 2025
  69. South Drove Drain6 siteslatest 5 Apr 2016
  70. Stort (Hertfordshire and North London)6 siteslatest 19 Aug 2025
  71. Twenty Foot Drain6 siteslatest 10 May 2023
  72. U/S Tattershall Bridge6 siteslatest 3 Sept 2009
  73. Vernatt's Drain6 siteslatest 26 Jul 1994
  74. Well Creek6 siteslatest 14 May 2026
  75. West Fen Drain6 siteslatest 27 Jun 2016
  76. DS Lt Ouse5 siteslatest 30 Jul 2024
  77. Eden5 siteslatest 12 Jun 2025
  78. Fossdyke Navigation Canal5 siteslatest 9 May 2017
  79. Great Ouse (Brackley to Newport Pagnell)5 siteslatest 17 Jun 2025
  80. Lugg5 siteslatest 23 Sept 2013

Distribution

By ecology region

  • Thames336 sites
  • Lincolnshire and Northamptonshire282 sites
  • East Anglia281 sites
  • West Midlands159 sites
  • Yorkshire84 sites
  • Hertfordshire and North London80 sites
  • Kent, South London and East Sussex67 sites
  • East Midlands55 sites
  • Wessex24 sites
  • Solent and South Downs22 sites
  • Greater Manchester Merseyside and Cheshire2 sites

Regions are the Environment Agency’s own ecology areas. Survey effort is not even across them, so a higher count can reflect more monitoring rather than more fish.

Provenance

Source and licence

  • SourceEnvironment Agency Ecology & Fish Data
  • LicenceOpen Government Licence v3.0
  • Source copy retrieved23 Jul 2026
  • Not assertedCurrent presence, abundance, access, permission or fishing quality
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