Main Tresillian
- EA ecology area
- Devon and Cornwall and the Isles of Scilly
- Waterbody IDs
- GB108048002350 · GB108048002390 · GB108048002510
- Catchments
- Carrick Roads
Main Tresillian fishing evidence · Devon and Cornwall and the Isles of Scilly
What fish are in the Main Tresillian?
Monitoring has recorded 2 species across 6 surveyed sites on this water, between 1986 and 1986. 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.
6 sites · 6 events
2 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.
Latest 11 Sept 1986
- Within 2 years
- 0 sites
- 3–5 years
- 0 sites
- 6–10 years
- 0 sites
- Older
- 6 sites
Permission is not established
Survey evidence carries no access boundary, permit, opening status, catch forecast or live safety signal. Resolve each before travelling.
Search current river conditions & alerts → Compare this evidence with another river → England coarse close season →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.
- Brown / sea troutSalmo trutta6 siteslatest 11 Sept 1986
- Atlantic salmonSalmo salar1 sitelatest 4 Aug 1986
Surveyed sites on this water
6 shown, newest survey first
Creens
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 11 Sept 1986
Knoll
- Survey events
- 1
- Observed taxa
- 2
- Latest survey
- 4 Aug 1986
Rosewyn
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 4 Aug 1986
Trendeal
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 1 Aug 1986
Tresowgar
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 30 Jul 1986
Tregeagle
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 24 Jul 1986
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