Main Inny
- EA ecology area
- Devon and Cornwall and the Isles of Scilly
- Waterbody IDs
- GB108047007760 · GB108047007890
- Catchments
- Tamar
Main Inny fishing evidence · Devon and Cornwall and the Isles of Scilly
What fish are in the Main Inny?
Monitoring has recorded 13 species across 19 surveyed sites on this water, between 1984 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.
19 sites · 154 events
13 positive taxa aggregates are shown. More survey coverage is not a fishing-quality verdict.
Latest 21 Aug 2025
- Within 2 years
- 4 sites
- 3–5 years
- 10 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.
- Atlantic salmonSalmo salar19 siteslatest 21 Aug 2025
- Brown / sea troutSalmo trutta19 siteslatest 21 Aug 2025
- European eels > elversAnguilla anguilla16 siteslatest 13 Aug 2025
- BullheadCottus gobio15 siteslatest 21 Aug 2025
- Brook lamprey ammocoetesLampetra planeri12 siteslatest 21 Aug 2025
- Stone loachBarbatula barbatula12 siteslatest 21 Aug 2025
- European eelAnguilla anguilla11 siteslatest 5 Aug 2010
- MinnowPhoxinus phoxinus11 siteslatest 21 Aug 2025
- GraylingThymallus thymallus7 siteslatest 26 Aug 2021
- Brook lampreyLampetra planeri6 siteslatest 17 Jun 2010
- European elversAnguilla anguilla5 siteslatest 13 Aug 2025
- Brook lamprey > ammocoeteLampetra planeri4 siteslatest 21 Aug 2025
- Lamprey sp. > ammocoetePetromyzontidae1 sitelatest 4 Jun 2009
Surveyed sites on this water
19 shown, newest survey first
U/s Davidstow Creamery Discharge
- Survey events
- 5
- Observed taxa
- 7
- Latest survey
- 21 Aug 2025
St. Clether
- Survey events
- 17
- Observed taxa
- 12
- Latest survey
- 13 Aug 2025
Trewinnow
- Survey events
- 11
- Observed taxa
- 9
- Latest survey
- 12 Aug 2025
Treguddick Mill
- Survey events
- 15
- Observed taxa
- 11
- Latest survey
- 22 Jul 2025
Treglasta
- Survey events
- 6
- Observed taxa
- 6
- Latest survey
- 29 Aug 2024
Bealsmill
- Survey events
- 17
- Observed taxa
- 13
- Latest survey
- 1 Aug 2024
Trecarrell
- Survey events
- 12
- Observed taxa
- 9
- Latest survey
- 1 Aug 2024
U/s Inny Vale STW
- Survey events
- 4
- Observed taxa
- 5
- Latest survey
- 31 Jul 2024
Knightsmill
- Survey events
- 10
- Observed taxa
- 10
- Latest survey
- 27 Jun 2024
Larrick
- Survey events
- 6
- Observed taxa
- 10
- Latest survey
- 20 Jun 2024
Trewen
- Survey events
- 11
- Observed taxa
- 8
- Latest survey
- 20 Jun 2024
u/s Laneast Bridge
- Survey events
- 10
- Observed taxa
- 9
- Latest survey
- 20 Jun 2024
U/S Killabury
- Survey events
- 1
- Observed taxa
- 4
- Latest survey
- 10 Oct 2023
D/S Bealsmill
- Survey events
- 1
- Observed taxa
- 5
- Latest survey
- 7 Sept 2023
Treguddick
- Survey events
- 11
- Observed taxa
- 7
- Latest survey
- 12 Sept 2007
Inny Foot
- Survey events
- 6
- Observed taxa
- 4
- Latest survey
- 15 Jul 2003
Killabury
- Survey events
- 4
- Observed taxa
- 3
- Latest survey
- 10 Jul 2003
Trekenner Mill
- Survey events
- 4
- Observed taxa
- 3
- Latest survey
- 30 Jul 1999
Hicks Mill
- Survey events
- 3
- Observed taxa
- 3
- Latest survey
- 2 Jul 1996
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