Monitoring has recorded 25 species across 30 surveyed sites on this water, between 2001 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
Middle Thames (Thames)
EA ecology area
Thames
Waterbody IDs
GB106039023160 · GB106039023233 · GB106039030331
Catchments
Thames
02 · Survey breadth
30 sites · 194 events
25 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.
03 · Freshness by site
Latest 25 Jul 2025
Within 2 years
10 sites
3–5 years
0 sites
6–10 years
0 sites
Older
20 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.