Publication details.

Paper

Year:2017
Author(s):E. Mayol, J. Arrieta, M. Jiménez, A. Martínez-Asensio, N. Garcias-Bonet, J. Dachs, B. González-Gaya, S. Royer, V. Benítez-Barrios, E. Fraile-Nuez, C. Duarte
Title:Long-range transport of airborne microbes over the global tropical and subtropical ocean
Journal:Nature Communications
ISSN:2041-1723
JCR Impact Factor:12.353
Volume:8
Issue No.:1
Pages:201
D.O.I.:10.1038/s41467-017-00110-9
Web:https://dx.doi.org/10.1038/s41467-017-00110-9
Abstract:© 2017 The Author(s). The atmosphere plays a fundamental role in the transport of microbes across the planet but it is often neglected as a microbial habitat. Although the ocean represents two thirds of the Earth's surface, there is little information on the atmospheric microbial load over the open ocean. Here we provide a global estimate of microbial loads and air-sea exchanges over the tropical and subtropical oceans based on the data collected along the Malaspina 2010 Circumnavigation Expedition. Total loads of airborne prokaryotes and eukaryotes were estimated at 2.2 × 1021 and 2.1 × 1021 cells, respectively. Overall 33-68% of these microorganisms could be traced to a marine origin, being transported thousands of kilometres before re-entering the ocean. Moreover, our results show a substantial load of terrestrial microbes transported over the oceans, with abundances declining exponentially with distance from land and indicate that islands may act as stepping stones facilitating the transoceanic transport of terrestrial microbes.

Related departments

  • Oceanography and Global Change
  • Related projects

  • MALASPINA
  • Related research groups

  • Global Change Research