Historic monitoring evidence · Environment Agency
R. Rase at Middle Rasen
Lincolnshire and Northamptonshire · 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.
Stone loach
Barbatula barbatula- First record
- 7 Jul 1989
- Latest record
- 28 May 2024
- Survey events
- 10
3-spined stickleback
Gasterosteus aculeatus- First record
- 7 Jul 1989
- Latest record
- 28 May 2024
- Survey events
- 9
Brown / sea trout
Salmo trutta- First record
- 7 Jul 1989
- Latest record
- 18 Apr 2018
- Survey events
- 6
Rainbow trout
Oncorhynchus mykiss- First record
- 8 Mar 1993
- Latest record
- 18 Apr 2018
- Survey events
- 2
Dace
Leuciscus leuciscus- First record
- 7 Jul 1989
- Latest record
- 4 Oct 2007
- Survey events
- 3
Gudgeon
Gobio gobio- First record
- 7 Jul 1989
- Latest record
- 4 Oct 2007
- Survey events
- 3
Perch
Perca fluviatilis- First record
- 4 Oct 2007
- Latest record
- 4 Oct 2007
- Survey events
- 1
European eel
Anguilla anguilla- First record
- 10 Oct 2002
- Latest record
- 10 Oct 2002
- Survey events
- 1
European eels > elvers
Anguilla anguilla- First record
- 7 Jul 1989
- Latest record
- 8 Mar 1993
- Survey events
- 2
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