Tagging of water masses with covariance of trace metals and prokaryotic taxa in the Southern Ocean
| Type | Article | ||||||||
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| Acceptance Date | 2023-11-23 IN PRESS | ||||||||
| Language | English | ||||||||
| Author(s) | Zhang Rui1, Blain Stéphane1, Baudet Corentin2, Planquette Helene2, Vivier Frédéric3, Catala Philippe1, Crispi Olivier1, Guéneuguès Audrey1, Marie Barbara1, Debeljak Pavla4, Obernosterer Ingrid1 | ||||||||
| Affiliation(s) | 1 : CNRS, Sorbonne Université, Laboratoire d’Océanographie Microbienne, LOMIC, F-66650 Banyuls/mer, France. 2 : Université Bretagne Occidentale, CNRS, IRD, Ifremer, UMR 6539, LEMAR, F-29280 Plouzané, France 3 : LOCEAN-IPSL, CNRS, Sorbonne Université, Paris, France 4 : Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS, EPHE, Université des Antilles, Institut de Systématique, Evolution, Biodiversité (ISYEB), F-75005, Paris, France. |
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| Source | bioRxiv (Cold Spring Harbor Laboratory) In Press | ||||||||
| DOI | 10.1101/2023.11.23.568349 | ||||||||
| Abstract | Marine microbes are strongly interrelated to trace metals in the ocean. How the availability of trace metals selects for prokaryotic taxa and the potential feedbacks of microbial processes on the trace metal distribution in the ocean remains poorly understood. We investigate here the potential reciprocal links between diverse prokaryotic taxa and iron (Fe), manganese (Mn), copper (Cu), Nickel (Ni) as well as apparent oxygen utilization (AOU) across 12 well-defined water masses in the Southern Indian Ocean (SWINGS-South West Indian Ocean GEOTRACES GS02 Section cruise). Applying Partial Least Square Regression (PLSR) analysis we show that the water masses are associated with particular latent vectors that are a combination of the spatial distribution of prokaryotic taxa, trace elements and AOU. This approach provides novel insights on the potential interactions between prokaryotic taxa and trace metals in relation to organic matter remineralization in distinct water masses of the ocean. |
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