Response of a natural phytoplankton community from the Qingdao coast (Yellow Sea, China) to variable CO2 levels over a short-term incubation experiment ...

• Main Authors: Biswas, Haimanti, Jie, Jin, Li, Ying, Zhang, Guosen, Zhu, Zhuoyi, Wu, Ying, Zhang, Guoling, Li, Yanwei, Liu, Sumei, Zhang, Jing
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Community composition and diversity; Entire community; Laboratory experiment; North Pacific; Pelagos; Primary production/Photosynthesis; Temperate; Type; Treatment; Chlorophyll a; Chlorophyll a, standard deviation; Carbon, organic, particulate; Carbon, organic, particulate, standard deviation; Chlorophyll a/particulate organic carbon ratio; Chlorophyll a/particulate organic carbon ratio, standard deviation; Nitrogen, organic, particulate; Nitrogen, organic, particulate, standard deviation; Phosphorus, organic, particulate; Particulate organic phosphorus, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Carbon/Phosphorus ratio; Carbon/Phosphorus ratio, standard deviation; Nitrogen/Phosphorus ratio; Nitrogen/Phosphorus ratio, standard deviation; Nitrogen, inorganic, dissolved; Nitrogen, inorganic, dissolved, standard deviation; Silicate; Silicate, standard deviation; Phosphorus, inorganic, dissolved; Phosphorus, inorganic, dissolved, standard deviation; Nitrogen, inorganic, dissolved/Phosphorus, inorganic, dissolved ratio; Nitrogen, inorganic, dissolved/Phosphorus, inorganic, dissolved ratio, standard deviation; Nitrogen/Silicon ratio; Nitrogen/Silicon ratio, standard deviation; Carbon, organic, dissolved; Carbon, organic, dissolved, standard deviation; Dissolved inorganic nitrogen, uptake; Dissolved inorganic nitrogen, uptake, standard deviation; Silicate uptake; Silicon uptake, standard deviation; Phosphorus uptake; Phosphorus uptake, standard deviation; Silicon/Nitrogen uptake ratio; Silicon/Nitrogen uptake ratio, standard deviation; Nitrogen/Phosphorus uptake ratio; Nitrogen/Phosphorus uptake ratio, standard deviation; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.860225; https://doi.pangaea.de/10.1594/PANGAEA.860225

Since marine phytoplankton play a vital role in stabilizing earth's climate by removing significant amount of atmospheric CO2, their responses to increasing CO2 levels are indeed vital to address. The responses of a natural phytoplankton community from the Qingdao coast (NW Yellow Sea, China) was studied under different CO2 levels in microcosms. HPLC pigment analysis revealed the presence of diatoms as a dominant microalgal group; however, members of chlorophytes, prasinophytes, cryptophytes and cyanophytes were also present. delta 13CPOM values indicated that the phytoplankton community probably utilized bicarbonate ions as dissolved inorganic carbon source through a carbon concentration mechanism (CCM) under low CO2 levels, and diffusive CO2 uptake increased upon the increase of external CO2 levels. Although, considerable increase in phytoplankton biomass was noticed in all CO2 treatments, CO2-induced effects were absent. Higher net nitrogen uptake under low CO2 levels could be related to the synthesis of ... : The value of biological parameters under 3 pCO2 levels are the final day value. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 2016-05-13. ...