Historic monitoring evidence · Environment Agency
Cobblers Lock
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.
Separate-signal passport
What this record proves — and what it does not.
No blended quality score. Identity, monitoring, freshness, access and rules stay as separate signals so one strong fact cannot hide a missing one.
Stable monitoring site
- AnglerRadar ID
- ea-fish-site:5848
- EA waterbody ID
- GB105030056690
- Waterbody
- R.Slea
- Catchment
- Witham Catchment
Dated survey record
- Scope
- freshwater
- Survey events
- 11
- Positive taxa shown
- 15
- Recorded methods
- AC ELECTRIC FISHING · ELECTRIC FISHING · PDC ELECTRIC FISHING · SEINE NETTING
Latest survey about 16 years ago
Coverage runs from 3 Jun 1985 to 7 Apr 2010. This is historic monitoring, never a live presence or catch forecast.
Access remains unresolved
The survey carries no fishing-rights boundary, permission, opening status or safety notice. Check the owner, rod licence, current byelaws and conditions separately.
Location protection: AnglerRadar does not print the survey coordinate on this page, and nearby API results use coarsened survey areas rather than exact species-linked points.
Observed taxa
What monitoring recorded here
Taxa are ordered by latest survey date. Counts and records reflect monitoring events, not an angling forecast.
European eels > elvers
Anguilla anguilla- First record
- 3 Jun 1985
- Latest record
- 7 Apr 2010
- Survey events
- 11
Pike
Esox lucius- First record
- 3 Jun 1985
- Latest record
- 7 Apr 2010
- Survey events
- 10
Roach
Rutilus rutilus- First record
- 3 Jun 1985
- Latest record
- 7 Apr 2010
- Survey events
- 7
Perch
Perca fluviatilis- First record
- 10 Sept 1991
- Latest record
- 7 Apr 2010
- Survey events
- 7
Stone loach
Barbatula barbatula- First record
- 3 Jul 1997
- Latest record
- 7 Apr 2010
- Survey events
- 6
Spined loach
Cobitis taenia- First record
- 3 Jul 1997
- Latest record
- 15 Apr 2008
- Survey events
- 3
Brown / sea trout
Salmo trutta- First record
- 15 Apr 2008
- Latest record
- 15 Apr 2008
- Survey events
- 1
3-spined stickleback
Gasterosteus aculeatus- First record
- 15 Apr 2008
- Latest record
- 15 Apr 2008
- Survey events
- 1
Dace
Leuciscus leuciscus- First record
- 3 Jun 1985
- Latest record
- 10 Apr 2007
- Survey events
- 7
Chub
Leuciscus cephalus- First record
- 3 Jun 1985
- Latest record
- 10 Apr 2007
- Survey events
- 6
Gudgeon
Gobio gobio- First record
- 25 Mar 1988
- Latest record
- 19 Apr 2005
- Survey events
- 4
Rudd
Scardinius erythrophthalmus- First record
- 3 Jul 1997
- Latest record
- 3 Jul 1997
- Survey events
- 1
Roach x common bream hybrid
Rutilus rutilus x Abramis brama- First record
- 25 Mar 1988
- Latest record
- 10 Sept 1991
- Survey events
- 2
Common bream
Abramis brama- First record
- 10 Sept 1991
- Latest record
- 10 Sept 1991
- Survey events
- 1
Ruffe
Gymnocephalus cernuus- First record
- 10 Sept 1991
- Latest record
- 10 Sept 1991
- Survey events
- 1
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
More evidence nearby
Other surveyed waters in Lincolnshire and Northamptonshire.
1,174 survey sites in this ecology region carry recorded taxa. Each keeps its own dates and source.
Browse Lincolnshire and Northamptonshire survey sites →