Seawater carbonate chemistry and food chain transfer of Polonium between primary producers and consumers ...

• Main Authors: Behbehani, Montaha, Uddin, Saif, Dupont, Sam, Fowler, Scott W, Gorgun, Aysun U, Al-Enezi, Yousef, Al-Musallam, Lamya, Kumar, Vanitha V, Faizuddin, Mohammad
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Acartia pacifica; Animalia; Arthropoda; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Euterpina acutifrons; Indian Ocean; Inorganic toxins; Laboratory experiment; Other studied parameter or process; Parvocalanus crassirostris; Pelagos; Single species; Temperate; Zooplankton; Type of study; Species; Treatment; Category; Time in hours; Mass; Polonium-209, activity; Polonium-209, activity per mass; Volume; Temperature, water; pH; pH, standard error; Alkalinity, total; Alkalinity, total, standard error; Salinity; Salinity, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification; Copepods
• Online Access: https://dx.doi.org/10.1594/pangaea.959783; https://doi.pangaea.de/10.1594/PANGAEA.959783

Phytoplankton and zooplankton are key marine components that play an important role in metal distribution through a food web transfer. An increased phytoplankton concentration as a result of ocean acidification and warming are well-established, along with the fact that phytoplankton biomagnify 210Po by 3–4 orders of magnitude compared to the seawater concentration. This experimental study is carried out to better understand the transfer of polonium between primary producers and consumers. The experimental produced data highlight the complex interaction between the polonium concentration in zooplankton food, i.e. phytoplankton, its excretion via defecated fecal pellets, and its bioaccumulation at ambient seawater pH and a lower pH of 7.7, typical of ocean acidification scenarios in the open ocean. The mass of copepods recovered was 11% less: 7.7 pH compared to 8.2. The effects of copepod species (n = 3), microalgae species (n = 3), pH (n = 2), and time (n = 4) on the polonium activity in the fecal pellets ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 by seacarb is 2023-06-15. ...