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Riftia pachyptila, commonly known as the giant tube worm and less commonly known as the giant beardworm, is a marine invertebrate in the phylum Annelida [1] (formerly grouped in phylum Pogonophora and Vestimentifera) related to tube worms commonly found in the intertidal and pelagic zones.
Lamellibrachia is a genus of tube worms related to the giant tube worm, Riftia pachyptila.They live at deep-sea cold seeps where hydrocarbons (oil and methane) leak out of the seafloor, and are entirely reliant on internal, sulfide-oxidizing bacterial symbionts for their nutrition.
A trophosome is a highly vascularised organ found in some animals that houses symbiotic bacteria that provide food for their host. Trophosomes are contained by the coelom of tube worms (family Siboglinidae, e.g. the giant tube worm Riftia pachyptila) [1] and in the body of symbiotic flatworms of the genus Paracatenula.
Siboglinidae is a family of polychaete annelid worms whose members made up the former phyla Pogonophora and Vestimentifera (the giant tube worms). [1] [2] The family is composed of around 100 species of vermiform creatures which live in thin tubes buried in sediment (Pogonophora) or in tubes attached to hard substratum (Vestimentifera) at ocean depths ranging from 100 to 10,000 m (300 to ...
Tevnia is a genus of giant tube worm in the family Siboglinidae, with only one species, Tevnia jerichonana, living in a unique deep-sea environment.These deep sea marine species survive in environments like hydrothermal vents.
Little is known about microbes that use hydrogen as a source of energy, however, studies have shown that they are aerobic, and also symbiotic with Riftia (see below). [11] [27] These bacteria are important in the primary production of organic carbon because the geothermally-produced H 2 is taken up for this process. [11]
The last animals to go extinct will be animals that do not depend on living plants, such as termites, or those near hydrothermal vents, such as worms of the genus Riftia. [75] The only life left on the Earth after this will be single-celled organisms. 1 billion [note 2] 27% of the ocean's mass will have been subducted into the mantle. If this ...
This is due to the toxic metal levels of hydrothermal vent fluid, a factor chemosynthetic bacteria require. Unfortunately, the low pH, low oxygen levels and aforementioned metals within the fluid create an environment only fit for extremophiles; A. pompejana has physiological traits to assist in combating this but they are not enough. As a ...