The rôles of plankton and neuston microbial organic matter in climate regulation
| Autor: | Tim Wyatt, Laurent Seuront, Jizhou Duan, Florence Elias, Elisa Berdalet, Santosh Kumar Karn, Wei-Chun Chin, Alenka Malej, Igor Emri, Haibing Ding, Xavier Mari, Wuchang Zhang, Jun Sun, Zhuo Li, Ian R. Jenkinson, Oliver Wurl, Michel Denis |
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| Přispěvatelé: | Chinese Academy of Sciences, National Natural Science Foundation of China, Ministry of Education of the People's Republic of China, Agencia Estatal de Investigación (España), Université Paris Diderot, Sorbonne Paris Cité, Paris, France, Université Paris Diderot - Paris 7 (UPD7) |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Ocean 010504 meteorology & atmospheric sciences Whitecap foam Climate Aquatic Science 01 natural sciences Organic matter Dissolved organic matter 14. Life underwater Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences chemistry.chemical_classification Ecology Atmosphere 010604 marine biology & hydrobiology Plankton Sea surface microlayer Neuston Microbes chemistry 13. Climate action [SDE]Environmental Sciences Environmental science Rheology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Journal of Plankton Research Journal of Plankton Research, Oxford University Press (OUP), 2021, ⟨10.1093/plankt/fbab067⟩ |
| ISSN: | 0142-7873 1464-3774 |
| Popis: | 21 pages, 3 figures, 2 tables, supplementary data https://doi.org/10.1093/plankt/fbab067 Plankton and neuston microbes produce organic matter (OM), which accumulates in the sea surface microlayer (SML). Fluxes of heat and momentum exchange across the sea-air interface, as do fluxes of matter, including greenhouse gases, aerosols, microbes (algae, bacteria sensu lato and viruses) and other substances. At least at calm to moderate windspeeds, microbial OM (MOM) in the SML reduces these fluxes. Another MOM fraction, foam, covers a part of the ocean surface. Ocean foam increases mean ocean albedo because it reflects solar radiation, thus cooling the ocean and the Earth. The rheological properties of MOM and the reduction of sea-air fluxes depend on microbial abundance and taxonomic composition, as do the formation and persistence of foam. Genomic regulation of MOM secretion may thus be helping to regulate air-sea fluxes and climate. Unpredictable changes in abundance and taxonomic composition of these microbial communities may be adding uncertainty to global and more local climate. Some of this uncertainty could be mitigated by studying the ecology and genomics of the surface microbial community together with chemical and rheological properties of their secreted MOM and its effects on sea-air fluxes and foam coverage, to incorporate into climate models Chinese Academy of Science Research Fellowship for Senior International Scientists (2009S1-36 to I.R.J.); National Natural Science Foundation of China grant (41876134 to J.S.); Changjiang Scholar Program of Chinese Ministry of Education |
| Databáze: | OpenAIRE |
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