Articles | Volume 19, issue 1
https://doi.org/10.5194/bg-19-117-2022
https://doi.org/10.5194/bg-19-117-2022
Research article
 | 
06 Jan 2022
Research article |  | 06 Jan 2022

Modeling polar marine ecosystem functions guided by bacterial physiological and taxonomic traits

Hyewon Heather Kim, Jeff S. Bowman, Ya-Wei Luo, Hugh W. Ducklow, Oscar M. Schofield, Deborah K. Steinberg, and Scott C. Doney

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Cited articles

Azam, F., Fenchel, T., Field, J. G., Gray, J. S., Meyer-Reil, L. A., and Thingstad, F.: The ecological role of water-column microbes in the sea, Mar. Ecol. Prog. Ser., 257–263, available at: https://www.jstor.org/stable/24814647 (last access: 3 January 2022), 1983. 
Bouvier, T., del Giorgio, P. A., and Gasol, J. M.: A comparative study of the cytometric characteristics of high and low nucleic-acid bacterioplankton cells from different aquatic ecosystems, Environ. Microbiol., 9, 2050–2066, https://doi.org/10.1111/j.1462-2920.2007.01321.x, 2007. 
Bowman, J. S. and Ducklow, H. W.: Microbial communities can be described by metabolic structure: a general framework and application to a seasonally variable, depth-stratified microbial community from the coastal West Antarctic Peninsula, PloS one, 10, e0135868, https://doi.org/10.1371/journal.pone.0135868, 2015. 
Bowman, J. S., Amaral-Zettler, L. A., Rich, J. J., Luria, C. M., and Ducklow, H. W.: Bacterial community segmentation facilitates the prediction of ecosystem function along the coast of the western Antarctic Peninsula, ISME J., 11, 1460–1471, https://doi.org/10.1038/ismej.2016.204, 2017. 
Buesseler, K. O., Boyd, P. W., Black, E. E., and Siegel, D. A.: Metrics that matter for assessing the ocean biological carbon pump, P. Natl. Acad. Sci. USA, 117, 9679–9687, 2020. 
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Heterotrophic marine bacteria are tiny organisms responsible for taking up organic matter in the ocean. Using a modeling approach, this study shows that characteristics (taxonomy and physiology) of bacteria are associated with a subset of ecological processes in the coastal West Antarctic Peninsula region, a system susceptible to global climate change. This study also suggests that bacteria will become more active, in particular large-sized cells, in response to changing climates in the region.
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