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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 .

Our field activities

SEPTEMBER

This is the last of the busy months in terms of field work at terrestrial sites as the season for monitoring butterflies, frogs, grazing animals and bats draws to an end. In rivers and lakes we sample diatoms for the third time in the year. The usual year-round measurements are also made.

See all this month's field measurements...

Loch Neagh