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Atmospheric Deposition Promotes Relative Abundances of High‐Dimethylsulfoniopropionate Producers in the Western North Pacific
Author(s) -
Li Haowen,
Zhou Shengqian,
Zhu Yucheng,
Zhang Ruifeng,
Wang Fanghui,
Bao Yang,
Chen Ying
Publication year - 2021
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2020gl092077
Subject(s) - dimethylsulfoniopropionate , ocean gyre , dinophyceae , oceanography , environmental science , algae , dominance (genetics) , environmental chemistry , deposition (geology) , nutrient , subtropics , phytoplankton , chemistry , ecology , biology , geology , biochemistry , paleontology , sediment , gene
Haptophytes and Dinoflagellates are two cosmopolitan algae associated with dimethylsulfoniopropionate (DMSP) synthesis, which regulates the marine biogenic flux of DMS to the atmosphere with potential effects on global climate. Attempting to reveal the potential impact of atmospheric deposition on the growth of high‐DMSP producers, four bioassay experiments were conducted in the western North Pacific (WNP) by adding aerosols, nutrients, and trace metals. Our results showed that the percentage of high‐DMSP producers increased substantially from coastal seas (<1%) to the open ocean (∼17%) with the dominance of Dinophyceae and Haptophyceae, respectively. Aerosol additions largely increased the percentage of high‐DMSP producing species in the subtropical gyre of WNP. Specifically, atmospheric dissolved inorganic nitrogen, soluble Cu and Fe promoted Dinophyceae taxa, Chrysochromulina , and Phaeocystis and E. huxleyi , respectively. It is very likely that atmospheric deposition could lift the relative abundance of high‐DMSP producers in the vast oligotrophic oceans and potentially contribute to the climate change.