Monitoring has recorded 14 species across 8 surveyed sites on this water, between 1992 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 Hart
EA ecology area
Thames
Waterbody IDs
GB106039017090 · GB106039017170
Catchments
River Loddon
02 · Survey breadth
8 sites · 16 events
14 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.
03 · Freshness by site
Latest 21 Apr 2026
Within 2 years
2 sites
3–5 years
0 sites
6–10 years
0 sites
Older
6 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.