Main Porth
- EA ecology area
- Devon and Cornwall and the Isles of Scilly
- Waterbody IDs
- GB208049000000
- Catchments
- Coastal Streams
Main Porth fishing evidence · Devon and Cornwall and the Isles of Scilly
What fish are in the Main Porth?
Monitoring has recorded 10 species across 5 surveyed sites on this water, between 1986 and 2015. 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.
5 sites · 13 events
10 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.
Latest 12 Jun 2015
- Within 2 years
- 0 sites
- 3–5 years
- 0 sites
- 6–10 years
- 0 sites
- Older
- 5 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 trutta5 siteslatest 12 Jun 2015
- Atlantic salmonSalmo salar2 siteslatest 15 Sept 2006
- Brook lamprey ammocoetesLampetra planeri2 siteslatest 12 Jun 2015
- European eelAnguilla anguilla2 siteslatest 23 Aug 2006
- European eels > elversAnguilla anguilla2 siteslatest 12 Jun 2015
- RoachRutilus rutilus2 siteslatest 12 Jun 2015
- Common breamAbramis brama1 sitelatest 12 Jun 2015
- European elversAnguilla anguilla1 sitelatest 12 Jun 2015
- FlounderPlatichthys flesus1 sitelatest 12 Jun 2015
- PerchPerca fluviatilis1 sitelatest 12 Jun 2015
Surveyed sites on this water
5 shown, newest survey first
Rialton Bridge
- Survey events
- 5
- Observed taxa
- 10
- Latest survey
- 12 Jun 2015
Tregoose Ford Bridge
- Survey events
- 4
- Observed taxa
- 4
- Latest survey
- 11 Jun 2015
Melancoose
- Survey events
- 2
- Observed taxa
- 3
- Latest survey
- 23 Aug 2006
Nanswhydden
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 2 Jun 1986
Nankelly
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 21 May 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