Saw that ..
Also noticed that the authors used "may be" three times
in their abstract .. They're not sure that the ROV is seeing
anything other than a natural process ..
Also methane releases mean more food for these 'bugs'
from Science magazine ..
Methane-Consuming Archaea Revealed by Directly Coupled Isotopic and Phylogenetic Analysis
Victoria J. Orphan,1* Christopher H. House,2* Kai-Uwe Hinrichs,3 Kevin D. McKeegan,4 Edward F. DeLong1
Microorganisms living in anoxic marine sediments consume more than 80% of the methane produced in the world's oceans. In addition to single-species aggregates, consortia of metabolically interdependent bacteria and archaea are found in methane-rich sediments. A combination of fluorescence in situ hybridization and secondary ion mass spectrometry shows that cells belonging to one specific archaeal group associated with the Methanosarcinales were all highly depleted in 13C (to values of -96). This depletion indicates assimilation of isotopically light methane into specific archaeal cells. Additional microbial species apparently use other carbon sources, as indicated by significantly higher 13C/12C ratios in their cell carbon. Our results demonstrate the feasibility of simultaneous determination of the identity and the metabolic activity of naturally occurring microorganisms.
1 Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039, USA.
2 Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, USA.
3 Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.
4 Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095, USA.
* These authors contributed equally to the work.
I don't disagree that we live on a changeable planet.
In fact, human populations would never have reached
present levels without major co-operation from the
planet by providing us with a relatively benign climate
in which to grow and flourish. If the present equilibrium
is about to shift; I doubt that there's much that we could
or should do about it ..
Triff .. @ClimateRealist.com |
