Guam undersea active volcano wildlife


This is a video of an undersea eruption near Tonga.

From World Science:

Expedition to bursting, undersea volcano yields marvels

May 5, 2009

Courtesy National Science Foundation and World Science staff

Sci­en­tists who have just re­turned from an ex­pe­di­tion to an erupt­ing un­der­sea vol­ca­no near the Is­land of Guam re­port that the vol­ca­no seems to be con­tin­u­ously ac­tive, has grown con­sid­erably in the past three years, and its ac­ti­vity sup­ports a un­ique bi­o­log­i­cal com­mun­ity thriv­ing de­spite the erup­tions.

An in­terna­t­ional sci­ence team on the ex­pe­di­tion, funded by the Na­tional Sci­ence Founda­t­ion, cap­tured dra­mat­ic new in­forma­t­ion about the erup­tive ac­ti­vity of NW Rota-1.

This video is called Submarine Ring of Fire 2006: NW Rota1 Brimstone Pit Erupting.

“This re­search al­lows us, for the first time, to study un­der­sea vol­ca­noes in de­tail and close up,” said Barba­ra Ran­som, pro­gram di­rec­tor in the Na­tional Sci­ence Founda­t­ion’s Di­vi­sion of Ocean Sci­ences, which funded the re­search. “NW Rota-1 re­mains the only place on Earth where a deep sub­ma­rine volca­no has ev­er been di­rectly ob­served while erupt­ing.” …

An­i­mals in this un­usu­al ec­o­sys­tem in­clude shrimp, crab, limpets and bar­na­cles, some of which are new spe­cies. “They’re spe­cially adapted to their en­vi­ron­ment,” said Chad­wick, “and are thriv­ing in harsh chem­i­cal con­di­tions that would be tox­ic to nor­mal ma­rine life. Life here is ac­tu­ally nour­ished by the erupt­ing vol­ca­no.”

Ve­re­na Tun­ni­cliffe, a bi­olo­g­ist from the Uni­ver­s­ity of Vic­to­ria, Can­ada, said that most of the an­i­mals are de­pend­ent on dif­fuse hot-wa­ter ven­t­ing that pro­vides bas­ic food in the form of bac­te­ri­al fil­a­ments coat­ing the rocks. “It ap­pears that since 2006 the dif­fuse ven­t­ing has spread and, with it, the ven­t an­i­mals,” Tun­ni­cliffe said. There are pro­fuse popula­t­ions of shrimp on the vol­ca­no, with two spe­cies able to cope with the vol­can­ic con­di­tions, she added.

“The ‘Loi­hi’ shrimp has adapted to graz­ing the bac­te­ri­al fil­a­ments with ti­ny claws like gar­den shears,” said Tun­ni­cliffe. “The sec­ond shrimp is a new spe­cies—they al­so graze as ju­ve­niles, but as they grow to adult stage, their front claws en­large and they be­come preda­tors.” The Loihi shrimp was pre­vi­ously known only from a small ac­tive vol­ca­no near Ha­waii, far away. It sur­vives on the fast-growing bac­te­ria and tries to avoid the haz­ards of the vol­can­ic erup­tions. Clouds of these shrimp were seen flee­ing vol­can­ic bursts, re­search­ers said.

The oth­er spe­cies at­tacks the Loihi shrimp and preys on ma­rine life that wan­ders too close to the vol­can­ic plumes and dies. “We saw dy­ing fish, squid, etc., rain­ing down on­to the sea­mount, where they were jumped on by the vol­ca­no shrim­p,” Tun­ni­cliffe said.

NW Rota-1 pro­vides a one-of-a-kind nat­u­ral lab­o­r­a­to­ry for the in­ves­ti­ga­t­ion of un­der­sea vol­can­ic ac­ti­vity and its rela­t­ion to chem­i­cal-based ec­o­sys­tems at un­der­wa­ter ven­ts, where some bi­ologists think life on Earth orig­i­nat­ed.

“It is un­usu­al for a vol­ca­no to be con­tin­u­ously ac­tive, even on land,” Chad­wick point­ed out.

“This pre­s­ents us with a fan­tas­tic op­por­tun­ity to learn about pro­cesses we’ve nev­er been able to di­rectly ob­serve be­fore,” he said. “When vol­ca­noes erupt in shal­low wa­ter they can be ex­tremely haz­ard­ous, cre­at­ing huge ex­plo­sions and even tsunamis. But he­re, we can safely ob­serve an eruption in the deep ocean and learn valua­ble lessons about how lot la­va and seawa­ter in­ter­ac­t.” …

Ocean acidifica­t­ion is a se­ri­ous con­cern be­cause of human-induced car­bon di­ox­ide ac­cu­mu­lat­ing in the atmo­sphere. “Subma­rine vol­ca­noes are places where we can study how an­i­mals have adapted to very acid­ic con­di­tions,” Chad­wick said.

Blog of this expedition: here.

Unique and new species thriving around erupting undersea volcano: here.

An observation ward for the long-term observation of a mud volcano in the Norwegian deep sea has been set up by, among others, three research institutes from the German federal state Bremen: here.

Supervolcano may be brewing beneath Mount St Helens: here.

The Remarkable Life of William Beebe: Explorer and Naturalist: here.

3 thoughts on “Guam undersea active volcano wildlife

  1. Pingback: New crab species gets Harry Potter name | Dear Kitty. Some blog

  2. Pingback: Guam people against Trump’s Korea nuclear warmongering | Dear Kitty. Some blog

  3. Pingback: World’s deepest deep sea fish discovered | Dear Kitty. Some blog

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