نتایج جستجو برای: vent duplicate
تعداد نتایج: 15010 فیلتر نتایج به سال:
During the BIOACCESS Japanese cruises (1996 & 1998), active hydrothermalism and associated vent fauna were studied on the South-eastern Rift of Manus Basin (South-western Pacific). In the PACMANUS vent field, a conspicuous vent fauna was sampled, including an actinostolid sea anemone (Actiniaria) belonging to an undescribed genus and species. Pacmanactis hashimotoi gen. et spec. nov. is here de...
Phase-separation and -segregation (boiling/distillation of subseafloor hydrothermal fluids) represent the primary mechanisms causing intra-field variations in vent fluid compositions. To determine whether this geochemical process affects the formation of microbial communities, we examined the microbial communities at three different vent sites located within a few tens meters of one another. In...
Four hundred eruptions of 3 active vents within the summit crater of the volcano Stromboli were recorded during 43.5 hours. The main vent (1) typically erupts pasty molten bombs in a 2 to 5 second burst with a mean frequency of 10.7 minutes. A second vent (2) normally fires a 1 second cannon-like burst of molten material averaging every 54 minutes. A third vent (3) predominantly erupts hot lumi...
Microorganisms throughout the dark ocean use reduced sulfur compounds for chemolithoautotrophy. In many deep-sea hydrothermal vents, sulfide oxidation is quantitatively the most important chemical energy source for microbial metabolism both at and beneath the seafloor. In this study, the presence and activity of vent endemic Epsilonproteobacteria was examined in six low-temperature diffuse vent...
Deep-sea vents are the light-independent, highly productive ecosystems driven primarily by chemolithoautotrophic microorganisms, in particular by -Proteobacteria phylogenetically related to important pathogens. We analyzed genomes of two deep-sea vent -Proteobacteria strains, Sulfurovum sp. NBC37-1 and Nitratiruptor sp. SB155-2, which provide insights not only into their unusual niche on the se...
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