Monitoring has recorded 22 species across 22 surveyed sites on this water, between 2002 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.
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 Thame
EA ecology area
Thames
Waterbody IDs
GB106039030200 · GB106039030240 · GB106039030370
Catchments
Thames
02 · Survey breadth
22 sites · 146 events
22 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.
03 · Freshness by site
Latest 18 Sept 2025
Within 2 years
9 sites
3–5 years
2 sites
6–10 years
1 sites
Older
10 sites
04 · Trip constraints
Permission is not established
Survey evidence carries no access boundary, permit, opening status, catch forecast or live safety signal. Resolve each before travelling.
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.