title: A high-resolution time-depth view of dimethylsulphide cycling in the surface sea.
abstract: Emission of the trace gas dimethylsulphide (DMS) from the ocean influences the chemical and optical properties of the atmosphere, and the olfactory landscape for foraging marine birds, turtles and mammals. DMS concentration has been seen to vary across seasons and latitudes with plankton taxonomy and activity, and following the seascape of ocean's physics. However, whether and how does it vary at the time scales of meteorology and day-night cycles is largely unknown. Here we used high-resolution measurements over time and depth within coherent water patches in the open sea to show that DMS concentration responded rapidly but resiliently to mesoscale meteorological perturbation. Further, it varied over diel cycles in conjunction with rhythmic photobiological indicators in phytoplankton. Combining data and modelling, we show that sunlight switches and tunes the balance between net biological production and abiotic losses. This is an outstanding example of how biological diel rhythms affect biogeochemical processes.
authors: Institut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain.|Department of Oceanography, School of Ocean and Earth Science and Technology, University of Hawaii at Mānoa, 1950 East-West Road, 96822, Honolulu, Hawaii, USA.
authors: S-J
authors: SJ
authors: Royer
authors: Institut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain.|Takuvik Joint International Laboratory and Québec-Océan, Université Laval, G1V OA6, Québec, QC, Canada.
authors: M
authors: M
authors: Galí
authors: Indian Institute of Tropical Meteorology (IITM), Pashan Road, 411 008, Pune, India.
authors: A S
authors: AS
authors: Mahajan
authors: Institut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain.|Aix-Marseille University, CNRS, University of Toulon, IRD, MIO UM 110, 13288, Marseille, France.
authors: O N
authors: ON
authors: Ross
authors: Instituto INIBIOMA (CRUB Comahue, CONICET), Quintral 1250, 8400 S.C. de Bariloche, Rio Negro, Argentina.
authors: G L
authors: GL
authors: Pérez
authors: University of California, Earth System Science Department, 3200 Croul Hall St, Irvine, California, 92697, United States.
authors: E S
authors: ES
authors: Saltzman
authors: Institut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain.
authors: R
authors: R
authors: Simó