RT Journal Article SR Electronic T1 Oceanic Dimethylsulfide: Production During Zooplankton Grazing on Phytoplankton JF Science JO Science FD American Association for the Advancement of Science SP 1314 OP 1316 DO 10.1126/science.233.4770.1314 VO 233 IS 4770 A1 DACEY, JOHN W. H. A1 WAKEHAM, STUART G. YR 1986 UL http://science.sciencemag.org/content/233/4770/1314.abstract AB About half the biogenic sulfur flux to the earth's atmosphere each year arises from the oceans. Dimethylsulfide (DMS), which constitutes about 90% of this marine sulfur flux, is presumed to originate from the decomposition of dimethylsulfoniopropionate produced by marine organisms, particularly phytoplankton. The rate of DMS release by phytoplankton is greatly increased when the phytoplankton are subjected to grazing by zooplankton. DMS production associated with such grazing may be the major mechanism of DMS production in many marine settings.