(Ladehammeren - The Trondheim Fjord / 15 meters /
9.19.2004)
(Ladehammeren - The Trondheim Fjord / 15 meters /
9.19.2004)
A tubeworm inhabits a self-made tube. They live in a encasing tube made of substances from specialized cells. This tube substance is often based on calcium carbonate, complex mixtures of proteins and polysaccharides. Sediments like fine sand grains or remains of dead shells stick to it and help strengthen the structure. The tubeworms do not leave their tubes willingly. The tube-building worms are gathered in an informal functional group called Sedentaria.