Temporal variations in viral distributions in the anoxic Cariaco Basin
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چکیده
منابع مشابه
Spatiotemporal dynamics of bacterial populations in the anoxic Cariaco Basin
Distributions of bacterial populations in the anoxic Cariaco Basin were studied over 2 yr (five cruises) at three stations using fluorescence in situ hybridization (FISH) and terminal restriction fragment length polymorphism (T-RFLP) of 16S ribosomal ribonucleic acid (rRNA) genes. FISH results demonstrate that the contribution of eproteobacterial abundances to total prokaryotic inventories was ...
متن کاملVertical distributions of thiosulfate and sulfite in the Cariaco Basin
Water column profiles of S2O and SO were obtained in January and May 2004 in the eastern portion of the 22 22 3 3 Cariaco Basin (108309N 648409W). Mean concentrations in the chemocline (250 to 450 m) decreased from 2.3 6 1.1 mmol L21 S2O in January to 1.4 6 0.3 mmol L21 S2O in May and from 4.8 6 2.9 mmol L 21 SO in 22 22 22 3 3 3 January to 2.7 6 0.7 mmol L21 SO in May. Integrated over this sam...
متن کاملPhylogenetic diversity of bacterial and archaeal communities in the anoxic zone of the Cariaco Basin.
Microbial community samples were collected from the anoxic zone of the Cariaco Basin at depths of 320, 500, and 1,310 m on a November 1996 cruise and were used to construct 16S ribosomal DNA libraries. Of 60 nonchimeric sequences in the 320-m library, 56 belonged to the epsilon subdivision of the Proteobacteria (epsilon-Proteobacteria) and 53 were closely related to ectosymbionts of Rimicaris e...
متن کاملBiogenic nitrogen gas production at the oxic–anoxic interface in the Cariaco Basin, Venezuela
Excess nitrogen gas (Nxs 2 ) was measured in samples collected at six locations in the eastern and western sub-basins of the Cariaco Basin, Venezuela, in September 2008 (non-upwelling conditions) and March 2009 (upwelling conditions). During both sampling periods, Nxs 2 concentrations were below detection in surface waters, increasing to ∼ 22 μmol N kg−1 at the oxic–anoxic interface ([O2]<∼ 4 μ...
متن کاملThe isotopic composition of authigenic chromium in anoxic marine sediments: A case study from the Cariaco Basin
a School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA b Department of Geology and Geophysics, Yale University, New Haven, CT 06521, USA c Department of Geology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA d Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA e Department of Ea...
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ژورنال
عنوان ژورنال: Aquatic Microbial Ecology
سال: 2003
ISSN: 0948-3055,1616-1564
DOI: 10.3354/ame030103