Metal concentrations in seawater of an ex-situ experiment with the cold-water octocoral Dentomuricea aff. meteor


We report the results of an aquaria-based experiment testing the effects of suspended particles generated during potential mining activities, on a common habitat-building coral species in the Azores, Dentomuricea aff. meteor. Coral fragments were maintained in 10-L aquaria and exposed to three experimental treatments for a period of four weeks at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores): (1) control conditions (no added sediments); (2) suspended polymetallic sulphide (PMS) particles; (3) suspended quartz particles. Trace elements (Co, Cu, Mn) released from the resuspension of PMS particles to the water column in each aquaria were determined using passive sampling (DGT® Research Ltd) coupled with inductively coupled plasma mass spectrometry (ICPMS). DGT-holders were deployed in all aquaria and replaced every week (days 6, 13, 20, 27).

Metals in seawater: Measurements of metal content in seawater in the different experimental treatments

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Metadata Access
Creator Carreiro-Silva, Marina; Martins, Ines; Raimundo, Joana; Caetano, Miguel; Bettencourt, Raul; Cerqueira, Teresa; Colaço, Ana
Publisher PANGAEA
Publication Year 2022
Funding Reference Fundação para a Ciência e Tecnologia, Mining2 0005 2017; Horizon 2020, 678760; Horizon 2020, 818123; Seventh Framework Programme, 603418
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 144 data points
Discipline Earth System Research
Spatial Coverage (-29.039 LON, 38.540 LAT); Condor Seamounts