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Macro-invertebrates

The ECN protocol for freshwater macro-invertebrates (FIN)
code

FIN

Protocol file

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Site types that use this protocol

Macro-invertebrates are a very diverse group of organisms with a wide range of environmental tolerances and preferences and are generally abundant in freshwater habitats. Communities are therefore likely to show both qualitative and quantitative responses to a full spectrum of possible environmental changes.  In most situations macro-invertebrates are also relatively easy to sample, qualitatively at least, and keys for the identification of most elements of the British fauna are readily available.

Species presence, abundance and deformities are determined 3 times per year at river and lake sites.

Our field activities

MARCH

In March activities at our terrestrial sites pick up after the winter. We start monitoring frog pools, moths and spiders, and prepare for ground beetle recording in April. At freshwater sites the winter measurements continue.

See all this month's field measurements...

A moth light trap © CEH
[Photo © CEH]