ARAnglerRadar evidence & rules

River Aln fishing evidence · North East

What fish are in the River Aln?

Monitoring has recorded 15 species across 39 surveyed sites on this water, between 1993 and 2026. 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.

River evidence passport

Four signals, kept deliberately separate.

The passport shows identity, survey breadth, evidence freshness and trip constraints without turning unlike facts into an opaque “best river” score.

01 · Identity

River Aln

EA ecology area
North East
Waterbody IDs
GB103022076250 · GB103022076260 · GB103022076270 · GB103022076280 · GB103022076290 · GB103022076310 · +4 more
Catchments
River Aln
02 · Survey breadth

39 sites · 253 events

15 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.

03 · Freshness by site

Latest 23 Jun 2026

Within 2 years
4 sites
3–5 years
23 sites
6–10 years
1 sites
Older
11 sites

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 trutta39 siteslatest 23 Jun 2026
  2. Atlantic salmonSalmo salar30 siteslatest 23 Jun 2026
  3. European eelAnguilla anguilla25 siteslatest 17 Jun 2025
  4. Stone loachBarbatula barbatula23 siteslatest 23 Jun 2026
  5. Lamprey sp.Petromyzontidae22 siteslatest 17 Jun 2025
  6. MinnowPhoxinus phoxinus20 siteslatest 23 Jun 2026
  7. River lampreyLampetra fluviatilis19 siteslatest 19 Sept 2012
  8. 3-spined sticklebackGasterosteus aculeatus17 siteslatest 23 Jun 2026
  9. European eels > elversAnguilla anguilla14 siteslatest 23 Jun 2026
  10. River lamprey > ammocoeteLampetra fluviatilis7 siteslatest 11 Jul 2013
  11. Lampetra sp.Lampetra4 siteslatest 23 Jun 2026
  12. Brown / sea trout x salmon hybridSalmo trutta x Salmo salar1 sitelatest 4 Aug 2017
  13. BullheadCottus gobio1 sitelatest 14 Sept 2012
  14. European elversAnguilla anguilla1 sitelatest 4 Aug 2017
  15. Lamprey sp. ammocoetesPetromyzontidae1 sitelatest 7 Oct 2013

Surveyed sites on this water

39 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
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