Direct linkage between dimethyl sulfide production and microzooplankton grazing, resulting from prey composition change under high partial pressure of carbon dioxide conditions, supplement to: Park, K T; Lee, Kitack; Shin, Kyoungsoon; Yang, Eun Jin; Hyun, Bonggil; Kim, Ja-Myung; Noh, Jae Hoon; Kim, Miok; Kong, Bokyung; Choi, Dong Han; Choi, Su-Jin; Jang, Pung-Guk; Jeong, Hae Jin (2014): Direct Linkage between Dimethyl Sulfide Production and Microzooplankton Grazing, Resulting from Prey Composition Change under High Partial Pressure of Carbon Dioxide Conditions. Environmental Science & Technology, 48(9), 4750-4756

• Main Authors: Park, K T, Lee, Kitack, Shin, Kyoungsoon, Yang, Eun Jin, Hyun, Bonggil, Kim, Ja-Myung, Noh, Jae Hoon, Kim, Miok, Kong, Bokyung, Choi, Dong Han, Choi, Su-Jin, Jang, Pung-Guk, Jeong, Hae Jin
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2014
• Subjects: Alexandrium sp.; Behaviour; Cerataulina pelagica; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; Mesocosm or benthocosm; North Pacific; Other metabolic rates; Pelagos; Primary production/Photosynthesis; Temperate; Temperature; Date; Incubation duration; Identification; Treatment; Salinity; Temperature, water; Partial pressure of carbon dioxide water at sea surface temperature wet air; pH; Alkalinity, total; Carbon, inorganic, dissolved; Dimethyl sulfide; Dimethylsulfoniopropionate, particulate; Carbon, organic, particulate; Carbon, organic, dissolved; Chlorophyll a; Nitrate and Nitrite; Phosphate; Silicate; Ammonia; Species; Cell density; Biomass; Fucoxanthin; Zeaxanthin; Chlorophyll b; Alloxanthin; 19-Hexanoyloxyfucoxanthin; Peridinin; Grazing rate; Grazing rate, standard error; Dimethylsulfoniopropionate lyase activity; Dimethylsulfoniopropionate lyase activity, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Experiment; Calculated; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.834079; https://doi.pangaea.de/10.1594/PANGAEA.834079

Oceanic dimethyl sulfide (DMS) is the enzymatic cleavage product of the algal metabolite dimethylsulfoniopropionate (DMSP) and is the most abundant form of sulfur released into the atmosphere. To investigate the effects of two emerging environmental threats (ocean acidification and warming) on marine DMS production, we performed a large-scale perturbation experiment in a coastal environment. At both ambient temperature and 2 °C warmer, an increase in partial pressure of carbon dioxide (pCO2) in seawater (160-830 ppmv pCO2) favored the growth of large diatoms, which outcompeted other phytoplankton species in a natural phytoplankton assemblage and reduced the growth rate of smaller, DMSP-rich phototrophic dinoflagellates. This decreased the grazing rate of heterotrophic dinoflagellates (ubiquitous micrograzers), resulting in reduced DMS production via grazing activity. Both the magnitude and sign of the effect of pCO2 on possible future oceanic DMS production were strongly linked to pCO2-induced alterations to the phytoplankton community and the cellular DMSP content of the dominant species and its association with micrograzers. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2014-07-15.