Thursday, 5th January 2012
The Discovery of New Deep-Sea Hydrothermal Vent Communities in the Southern Ocean and Implications for Biogeography
Source: Public Library of Science (PLoS)
From the abstract:
The Southern Ocean is known to be a region of high deep-sea species diversity and centre of origin for the global deep-sea fauna. It has also been proposed as a gateway connecting hydrothermal vents in different oceans but is little explored because of extreme conditions. Since 2009 we have explored two segments of the East Scotia Ridge (ESR) in the Southern Ocean using a remotely operated vehicle. In each segment we located deep-sea hydrothermal vents hosting high-temperature black smokers up to 382.8°C and diffuse venting. The chemosynthetic ecosystems hosted by these vents are dominated by a new yeti crab (Kiwa n. sp.), stalked barnacles, limpets, peltospiroid gastropods, anemones, and a predatory sea star. ... Evidence from the distinctive fauna, the unique community structure, and multivariate analyses suggest that the Antarctic vent ecosystems represent a new vent biogeographic province. However, multivariate analyses of species present at the ESR and at other deep-sea hydrothermal vents globally indicate that vent biogeography is more complex than previously recognised.
+ Link to full article (PDF; 1.42 MB)
By Peggy Garvin
Peggy Garvin, of Garvin Information Consulting, is the author of United States Government Internet Directory (Bernan Press) and Real World Research Skills, 2009 (TheCapitol.Net). In her 20 years in the information business, Peggy has managed electronic information products and services in a variety of environments, including commercial publishing, e-commerce, law firms, and the Congressional Research Service of the Library of Congress. Peggy's work has been recognized with the 2011 SLA Dow Jones Leadership Award. She has a Masters of Library Science degree from Syracuse University School of Information Studies.
More articles by Peggy Garvin »
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