Deep ocean tube worms,hydrothermal vent

Numéro d’image : 11906694
Deep ocean tube worms,hydrothermal vent
Giant tube worms (Riftia pachyptila,left) anchored on the seabed by a hydrothermal vent. These marine invertebrates are a key part of the ecosystem of deep ocean hydrothermal vents. They can tolerate high temperatures,and obtain nutrients from the water by symbiosis with bacteria living in their bodies. The white tubes are made of chitin. The red structures,called plumes,contain haemoglobin that combines with the hydrogen sulphide and transfers it to the bacteria. The bacteria then convert the inorganic chemicals to organic molecules that are used by the tube worms. Other marine animals seen here include giant crabs (lower centre) and giant clams. Photographed on the East Pacific Rise
Licence : Droits gérés
Crédit: Science Photo Library / MacDonald, Dr. Ken
Taille de l’image : 3624 px × 2411 px
Model Release : Non requis
Property Release : Non requis
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