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Epilithic Diatoms

The ECN protocol for diatoms on submerged stones (FDT)
code

FDT

Protocol file

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Site types that use this protocol

Diatoms are a diverse group of unicellular algae and are well-established as sensitive biological indicators of surface water quality due to the narrow tolerance of individual species to environmental parameters such as pH and nutrient availability.  Diatoms grow attached to submerged stones within certain zones of lakes and streams and are easy to sample in most freshwaters in a replicable manner.  The sampling procedure adopted by ECN is simple and follows that used for the United Kingdom Acid Waters Monitoring Network .

Our field activities

JUNE

June is one of ECN's busiest months. In addition to the many other measurements, we start summer bat monitoring at terrestrial sites, and survey for spittle bugs. At freshwater sites, routine water sampling continues and we also sample diatoms this month.

See all this month's field measurements...

Bat detector