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The giant volcano sponge (Anoxycalyx joubini) is a species of Antarctic sponge. [1] It is one of the largest sponges in the world which can grow up to a diameter of 1.5 metres (5 feet) and 1.95 metres (6.5 feet) in height. [2] The species may have an extremely long lifespan, with estimates of up to 15,000 years. [3]
Cinachyra antarctica is a species of antarctic sponge belonging to the family Tetillidae. [1] It was first described by H.J. Carter in 1872. [2] A 2002 study in Antarctica calculated that this sponge and another antarctic sponge, Anoxycalyx joubini, have amazingly long lifespans surpassing 1,550 years in C. antarctica and 15,000 years in A. joubini.
The largest is the whitish or dull yellowish Anoxycalyx joubini, sometimes called the giant volcano sponge in reference to its shape. It can reach a height of 2 m (6.5 ft) and is an important habitat for several smaller organisms.
The giant volcano sea sponge (Anoxycalyx joubini) is estimated to live between 6 thousand to up to 40 thousand years, and grow up to 1.5 meters (5 feet) in diameter and 1.95 meters (6.5 feet) high. [79] They survive by filtering sea water, and with a tube shape, the largest are big enough a person can swim inside. [79]
Joubin's squid (Joubiniteuthis portieri) is named for him, [5] as is Anoxycalyx joubini, a hexactinellid sponge whose lifespan is purportedly 10,000 years. [6] Joubin's laboratory at the Institut Océanographique (1911).
Along with Anoxycalyx joubini and Rossella nuda and Rossella racovitzae, Rossella antarctica is one of the main hexactinellid sponges that comprise the bulk of Antarctic benthic biomass. [6] Consequently, they form an important part of these communities.
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