MM24A:
Action! Microbial Activity and Interaction with Organic and Inorganic Matter in the Dark Ocean Posters
MM24A:
Action! Microbial Activity and Interaction with Organic and Inorganic Matter in the Dark Ocean Posters
Action! Microbial Activity and Interaction with Organic and Inorganic Matter in the Dark Ocean Posters
Session ID#: 7980
Session Description:
The notion of low metabolic activity in the dark ocean is a view from the past. On the contrary, meso- and bathypelagic microbes exhibit relatively high biomass production and respiration, variable enzyme activity, and measurable fixation of inorganic carbon, manifesting that bacteria and archaea are a dynamic component in earth’s largest habitat. In addition to a lack of data of major parts of the global open ocean, the quest now is to uncover the source for this metabolic activity, deciphering the hot spots of dark ocean microbial interactions with organic matter in all forms and the potential energy sources utilized.
This session invites contributions presenting the magnitude of bacterial and archaeal activity in the dark ocean, indicating potential metabolic pathways on an omics level, addressing the relationship between microbes and the organic matter pool, or linking the composition of organic and inorganic matter to microbial processes. Thus we seek to paint an interdisciplinary picture of the microbial processes in the dark global ocean.
Primary Chair: Thomas Reinthaler, University of Vienna, Department of Limnology and Bio-Oceanography, Vienna, Austria
Chair: Roberta Hansman, University of Vienna, Department of Limnology and Bio-Oceanography, Vienna, Austria
Moderators: Thomas Reinthaler, University of Vienna, Department of Limnology and Bio-Oceanography, Vienna, Austria and Roberta Hansman, University of Vienna, Department of Limnology and Bio-Oceanography, Vienna, Austria
Student Paper Review Liaison: Roberta Hansman, University of Vienna, Department of Limnology and Bio-Oceanography, Vienna, Austria
Index Terms:
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4858 Population dynamics and ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Co-Sponsor(s):
- B - Biogeochemistry and Nutrients
- CT - Chemical Tracers, DOM and Trace Metals
- ME - Marine Ecosystems
Abstracts Submitted to this Session:
Redox Conditions and Microbial Particle Association: A Multi-Year Study in the Cariaco Basin (89874)
Effect of hydrostatic pressure on prokaryotic heterotrophic activity in the dark ocean (87599)
Abundance and Transcriptional Activity of Thaumarchaeal amoA and ureC genes in North Pacific Ocean (89264)
Prokaryotic degradation of high molecular weight dissolved organic matter in the deep-sea waters of NW Mediterranean Sea under in situ temperature and pressure conditions during contrasted hydrological conditions (89501)
Investigating microbial cycling of recalcitrant organic matter in marine sediments using natural isotope respirometry in a novel, carbon-free bioreactor (90070)
Linking variations in DOM composition and the microbial community in the water masses of the deep northeast Atlantic Ocean (90800)
The use of an optical method to evaluate prokaryotic oxygen consumption under high pressure condition (90912)
Characterizing The Microbial Lability And Isotopic (14C, 13C) Signatures Of Marine Organic Matter With A Novel Culture Vessel System (92470)
Single-cell measurement of archaeal and bacterial carbon assimilation in dark Pacific Ocean waters (92894)
See more of: Microbiology and Molecular Biology