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Freshwater

Measurements made at ECN freshwater sites

Surface Water Chemistry & Quality

The ECN protocol for surface water chemistry and quality (measurement of physical & chemical variables) (FWC/FWA)

Surface Water Chemistry & Quality - Read More…

Surface Water Discharge

The ECN protocol for surface water discharge (FWD)

Surface Water Discharge - Read More…

Epilithic Diatoms

The ECN protocol for diatoms on submerged stones (FDT)

Epilithic Diatoms - Read More…

Macro-invertebrates

The ECN protocol for freshwater macro-invertebrates (FIN)

Macro-invertebrates - Read More…

Discontinued protocols

These protocols are no longer followed by the majority of sites, but are included on the website for anyone working with historic ECN data.

Discontinued protocols - Read More…

Our field activities

APRIL

In April we start carrying out almost all the ECN measurements, though the weather is not always kind! At freshwater sites we sample diatoms and invertebrates.

See all this month's field measurements...

Moor House
[Photo © CEH]