ARAnglerRadar evidence & rules

Devon and Cornwall and the Isles of Scilly · Environment Agency surveys

What fish are in the Main Haddeo?

Monitoring has recorded 14 species across 12 surveyed sites on this water, between 1997 and 2025. These are survey records with dates. They do not establish what is present today, that the water is fishable, or that you have permission to fish it.

Recorded species

What monitoring has found here

Ordered by how many sites on this water recorded the species. A species not listed has not been recorded by these surveys — which is not the same as being absent.

  1. Brown / sea troutSalmo trutta12 siteslatest 1 Jul 2025
  2. Atlantic salmonSalmo salar11 siteslatest 1 Jul 2025
  3. BullheadCottus gobio6 siteslatest 1 Jul 2025
  4. European eels > elversAnguilla anguilla5 siteslatest 1 Jul 2025
  5. Lamprey sp.Petromyzontidae5 siteslatest 31 Jul 2023
  6. Stone loachBarbatula barbatula5 siteslatest 1 Jul 2025
  7. European eelAnguilla anguilla4 siteslatest 24 Aug 2015
  8. GraylingThymallus thymallus4 siteslatest 13 Jul 2022
  9. MinnowPhoxinus phoxinus4 siteslatest 1 Jul 2025
  10. 3-spined sticklebackGasterosteus aculeatus3 siteslatest 31 Jul 2015
  11. Lampetra sp.Lampetra2 siteslatest 19 Aug 2021
  12. Lamprey sp. ammocoetesPetromyzontidae2 siteslatest 1 Jul 2025
  13. Rainbow troutOncorhynchus mykiss2 siteslatest 17 Jul 2007
  14. RoachRutilus rutilus1 sitelatest 13 Jul 2022

Surveyed sites on this water

12 shown, newest survey first

Provenance

Source and licence

  • SourceEnvironment Agency Ecology & Fish Data
  • LicenceOpen Government Licence v3.0
  • Source copy retrieved23 Jul 2026
  • Waterbody nameAs published by the Environment Agency
  • Not assertedCurrent presence, access, permission, fishing quality or safety