Bioturbation – research in the tideland

The tideland is inhabited by shells, snails and worms. What does that mean for the soil? Scientists examine these animals in the lab and photograph them with a special camera. They discover how worms ventilate the soil and oxidate toxic hydrogen sulphide into harmless sulphur. This reworking of the soil – bioturbation – keeps the sediment granular and permeable. Without these animals, life in the tidelands would be less diverse and the sand would be stinking mud!

Concept: Starting point is a scientific computer simulation. The film tells the “story behind”.

Production: for Max Planck Society
Author: Nicola Wettmarshausen
Length: 6.04 min.

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