Gas Hydrates by Carlo Giavarini & Keith Hester

Author:Carlo Giavarini & Keith Hester
Language: eng
Format: epub
Publisher: Springer London, London

Ice worms are polychaetes, animal organisms belonging to the phylum Annelida. They are pink in color, have a cylindrical body about 4 cm long, slightly flattened with bilateral symmetry. The most abundant species that proliferate in the presence of gas hydrate is Hesiocaea methanicola. This species has no mouth or digestive tract and uses chemosynthetic bacteria living in its cellular tissues as its source of energy and nutrients.

The role hydrate ice worms play in the ecosystem is still unclear, but the most impressive feature is how they defend the cavities they occupy when they feel threatened. This occurs even when approached by simple external observers, like robot drones used by scientists to collect small samples or take photographs [2].

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