Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University Oldenburg, Germany
Dissolved and particulate trace metal and rare earth element (REE) concentrations during a mesocosm based phytoplankton bloom simulating intertidal coastal conditions
Data Publisher for Earth & Environmental Science
We analyzed concentrations of dissolved and particulate trace metals, including iron (Fe), manganese (Mn), vanadium (V), molybdenum (Mo), thallium (Tl), and rare earth elements (REE), during a mesocosm-based phytoplankton summer bloom mimicking the intertidal zone of the southern North Sea (Jade Bay). The studies aimed to identify key drivers controlling their biogeochemical cycling in dynamic, high-productivity coastal environments. Our results highlight the tidally influenced coastal zone as a critical interface that alters the behavior of supposedly conservative elements such as Mo and Tl (Mori et al., 2021) as well as natural and anthropogenic REE (incl., lanthanum, samarium, and gadolinium) (Mori et al., under review). Trace metal concentrations and shale-normalized REE patterns, determined by quadrupole inductively coupled plasma–mass spectrometry (ICP-MS) and inductively coupled plasma–optical emission spectrometry (ICP-OES), were combined with biogeochemical bulk parameters and pigment-based assessments of phytoplankton growth and community composition (Mustaffa et al., 2020). Trace metal and REE cycling were evaluated in relation to phytoplankton dynamics, particulate organic matter composition (C, N, P), dissolved organic carbon, total dissolved nitrogen, and macronutrient concentrations (nitrate, ammonium, silicate, and inorganic phosphate). The dataset was obtained during a Planktotron-based mesocosm experiment conducted within the framework of the Coastal Ocean Darkening project (Mustaffa et al., 2020).
Biogeochemical cycling of molybdenum and thallium during a phytoplankton summer bloom: A mesocosm study
Rare earth element cycling in high productivity coastal environments – in situ vs. benthic-pelagic coupling mediated patterns
Coastal Ocean Darkening Effects via Terrigenous DOM Addition on Plankton: An Indoor Mesocosm Experiment
Biogeochemical cycling of selected potentially harmful (ultra-)trace metals (Tl, REE) in coastal environments
Coastal ocean darkening – Light availability in the past and future marine environment
Ministry for Science and Culture of Lower Saxony
Handheld multiparameter instrument, WTW, Multi 250i
Spectrophotometer, Thermo Fisher Scientific, Multiscan GO Microplate
Spectrophotometer, Thermo Fisher Scientific, AquaMate Plus UV-VIS
obtained from the dry weight difference of polycarbonate filters before and after filtration
High catalytic combustion, Shimadzu, Shimadzu TOC-VCPH equipped with TDN unit
Elemental analyzer, Thermo Scientific, Flash EA 1112
Spectrophotometry using molybdate reaction after sulfuric acid digestion according to Grasshoff et al. (2009)
Inductively coupled plasma - mass spectrometry (ICP-MS), Thermo Finnigan, Element 2
Inductively coupled plasma mass spectrometer (ICP-MS), Thermo Fisher Scientific Inc., iCAP TQ
Heavy rare-earth elements/light rare-earth elements ratio
calculated based on Post Archean Australian (PAAS)(Pourmand et al., 2012) normalized SUM(Tm, Yb, Lu)/SUM(La_nat, Pr, Nd)
Calculated using equation Ce/Ce*PAAS = CePAAS/(PrPAAS²/NdPAAS) of Lawrence et al. (2006)
calculated after Kulaksiz and Bau (2013)
Inductively coupled plasma optical emission spectrometer (ICP-OES), Thermo, iCAP 6000
disgestion according to Heinrichs et al. (1986)
inductively-coupled plasma atomic emission spectroscopes
Triple-Quatrupole inductively coupled mass spectometry (ICP-MS, iCAP-TQ), Thermo Scientific
leaching according to Berger et al. (2008)
digestion according to Ohnemus et al. (2017)
Anthropogenic REE; coastal ecosystem; mesocosm; Phytoplankton; Phytoplankton bloom; Planktotron; Rare earth elements