Historic monitoring evidence · Environment Agency
R.Seph, Laskill Bridge DERBT51
Yorkshire · survey site
This page records ecological survey evidence. It is not proof of current fish presence, abundance, fishing quality, access, permission or safety at this location.
Observed taxa
What monitoring recorded here
Taxa are ordered by latest survey date. Counts and records reflect monitoring events, not an angling forecast.
Brown / sea trout
Salmo trutta- First record
- 10 Sept 1997
- Latest record
- 11 Sept 2024
- Survey events
- 12
Bullhead
Cottus gobio- First record
- 3 Oct 2001
- Latest record
- 11 Sept 2024
- Survey events
- 10
Lampetra sp.
Lampetra- First record
- 11 Sept 2024
- Latest record
- 11 Sept 2024
- Survey events
- 1
Grayling
Thymallus thymallus- First record
- 3 Oct 2001
- Latest record
- 13 Aug 2019
- Survey events
- 4
Rules and access
Check before you travel.
Environment Agency ecology records do not carry fishing-rights boundaries or live restrictions. Confirm the fishery owner, permission, local byelaws, seasonal rules, safety notices and current conditions before setting out.
Check live freshwater fishing rulesProvenance
Source, licence and boundary
- SourceEnvironment Agency Ecology & Fish Data
- LicenceOpen Government Licence v3.0
- Source copy retrieved23 Jul 2026
- Terms checked23 Jul 2026
- CoverageHistoric monitoring evidence, separately dated per record
- Not assertedCurrent presence, access, permission, fishing quality or safety