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Epithilic 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 .

July

Our field activities

JULY

At terrestrial sites during July we continue with evening bat monitoring started in June, but bird surveying is complete. We also survey grazing animals this month, using a dropping count method. At freshwater sites we sample larger invertebrates. Of course, there's also a suite of year-round measurements to be made!

See all this month's field measurements...

Sampling in Windermere