East Anglia · Environment Agency surveys
What fish are in the River Chelmer Upper (Main Reaches)?
Monitoring has recorded 29 species across 16 surveyed sites on this water, between 1983 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.
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.
- ChubLeuciscus cephalus15 siteslatest 1 Oct 2025
- DaceLeuciscus leuciscus15 siteslatest 1 Oct 2025
- European eels > elversAnguilla anguilla15 siteslatest 1 Oct 2025
- GudgeonGobio gobio15 siteslatest 25 Sept 2025
- RoachRutilus rutilus15 siteslatest 1 Oct 2025
- RuddScardinius erythrophthalmus15 siteslatest 22 Aug 2019
- MinnowPhoxinus phoxinus14 siteslatest 1 Oct 2025
- PikeEsox lucius14 siteslatest 25 Sept 2025
- 3-spined sticklebackGasterosteus aculeatus13 siteslatest 1 Oct 2025
- Stone loachBarbatula barbatula13 siteslatest 1 Oct 2025
- BullheadCottus gobio12 siteslatest 1 Oct 2025
- Common [wild] carpCyprinus carpio12 siteslatest 5 Sept 2016
- Brown / sea troutSalmo trutta11 siteslatest 1 Oct 2025
- PerchPerca fluviatilis10 siteslatest 25 Sept 2025
- Mirror carpCyprinus carpio7 siteslatest 16 Oct 2006
- Common breamAbramis brama6 siteslatest 22 Aug 2019
- TenchTinca tinca6 siteslatest 3 Aug 2007
- Roach x rudd hybridRutilus rutilus x Scardinius erythrophthalmus5 siteslatest 11 Aug 2010
- Brook lampreyLampetra planeri2 siteslatest 18 Aug 1998
- Lampetra sp. ammocoetesLampetra2 siteslatest 6 Oct 2016
- Lamprey sp. ammocoetesPetromyzontidae2 siteslatest 23 Sept 2025
- Brook lamprey > ammocoeteLampetra planeri1 sitelatest 15 Sept 2016
- Brook lamprey ammocoetesLampetra planeri1 sitelatest 15 Sept 2016
- Feral [brown] goldfishCarassius auratus1 sitelatest 8 Sept 1986
- Lampetra sp. > ammocoeteLampetra1 sitelatest 6 Oct 2016
- Leather carpCyprinus carpio1 sitelatest 11 Sept 1989
- Rainbow troutOncorhynchus mykiss1 sitelatest 21 Sept 1983
- Roach x chub hybridRutilus rutilus x Leuciscus cephalus1 sitelatest 5 Aug 2004
- Roach x common bream hybridRutilus rutilus x Abramis brama1 sitelatest 19 Aug 1992
Surveyed sites on this water
16 shown, newest survey first
Warners Farm
- Survey events
- 15
- Observed taxa
- 13
- Latest survey
- 1 Oct 2025
Chelmsford Viaduct
- Survey events
- 15
- Observed taxa
- 17
- Latest survey
- 25 Sept 2025
Camsix Farm A
- Survey events
- 14
- Observed taxa
- 18
- Latest survey
- 23 Sept 2025
U/S Croxtons
- Survey events
- 14
- Observed taxa
- 16
- Latest survey
- 20 Aug 2025
Langleys Dunmow
- Survey events
- 15
- Observed taxa
- 16
- Latest survey
- 19 Aug 2025
Felstead A
- Survey events
- 12
- Observed taxa
- 19
- Latest survey
- 6 Oct 2016
Littley Park
- Survey events
- 11
- Observed taxa
- 12
- Latest survey
- 5 Oct 2016
Little Waltham
- Survey events
- 12
- Observed taxa
- 15
- Latest survey
- 21 Sept 2016
Absol Bridge
- Survey events
- 10
- Observed taxa
- 18
- Latest survey
- 21 Sept 2010
Springfield
- Survey events
- 10
- Observed taxa
- 14
- Latest survey
- 25 Aug 2010
Langley Waltham
- Survey events
- 10
- Observed taxa
- 17
- Latest survey
- 20 Aug 2010
D/S Croxtons
- Survey events
- 10
- Observed taxa
- 15
- Latest survey
- 11 Aug 2010
Churchend FGS
- Survey events
- 9
- Observed taxa
- 16
- Latest survey
- 22 Aug 2007
Hoffmans Mill
- Survey events
- 10
- Observed taxa
- 13
- Latest survey
- 2 Aug 2007
Camsix Farm B
- Survey events
- 1
- Observed taxa
- 7
- Latest survey
- 28 Sept 1983
Felstead B
- Survey events
- 1
- Observed taxa
- 1
- Latest survey
- 23 Sept 1983
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