Dataset: Calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.

Final no updates expectedDOI: 10.1575/1912/bco-dmo.784480.1Version 1 (2019-12-20)Dataset Type:Other Field Results

Principal Investigator: James Bradley (University of Southern California)

Co-Principal Investigator: Doug LaRowe (University of Southern California)

BCO-DMO Data Manager: Mathew Biddle (Woods Hole Oceanographic Institution)

Program: Center for Dark Energy Biosphere Investigations (C-DEBI)

Project: Develop a 1D biogeochemical-evolutionary model for deep sediments (BIO-SED)

Abstract

Calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.

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This sheet contains data on calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.

This project quantifies the role of microbial necromass and organic carbon as a power source to living microorganisms in marine sediments. The project utilizes a physiochemical model of marine sediment bioenergetics using data available in the literature and well-established modeling constructs. Data sources and model formulation are described in Bradley et al. 2018 (DOI: 10.1002/2017JG004186). For modelling South Pacific Gyre sediments, cell abundance and particulate organic carbon concentrations were determined for site U1370 (IODP Expedition 329) based on published analysis of extracted drill cores: D’Hondt et al. 2015 (DOI: 10.1038/ngeo2387); D’Hondt et al. 2011 (DOI: 10.2204/iodp.proc.329.2011). For modelling global cell abundance, we use the formulation described in Parkes et al. 2014 (DOI: 10.1016/j.margeo.2014.02.009).

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Related Publications

Methods
(2011). Proceedings of the IODP. doi:10.2204/iodp.proc.329.2011
Methods
Bradley, J. A., Amend, J. P., & LaRowe, D. E. (2018). Necromass as a Limited Source of Energy for Microorganisms in Marine Sediments. Journal of Geophysical Research: Biogeosciences, 123(2), 577–590. doi:10.1002/2017jg004186
Methods
D’Hondt, S., Inagaki, F., Zarikian, C. A., Abrams, L. J., Dubois, N., Engelhardt, T., … Ziebis, W. (2015). Presence of oxygen and aerobic communities from sea floor to basement in deep-sea sediments. Nature Geoscience, 8(4), 299–304. doi:10.1038/ngeo2387
Methods
Parkes, R. J., Cragg, B., Roussel, E., Webster, G., Weightman, A., & Sass, H. (2014). A review of prokaryotic populations and processes in sub-seafloor sediments, including biosphere:geosphere interactions. Marine Geology, 352, 409–425. doi:10.1016/j.margeo.2014.02.009

Bradley, J., LaRowe, D. (2019) Calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-12-20 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.784480.1 [access date]

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