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

Related Identifier
Related Identifier
Metadata Access
Creator Carreiro-Silva, Marina ORCID logo; Martins, Ines ORCID logo; Raimundo, Joana ORCID logo; Caetano, Miguel ORCID logo; Bettencourt, Raul ORCID logo; Cerqueira, Teresa (ORCID: 0000-0002-3397-574X); Colaço, Ana ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Fundação para a Ciência e Tecnologia Crossref Funder ID Mining2/0005/2017 Mining Impact 2; Horizon 2020 Crossref Funder ID 678760 A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Horizon 2020 Crossref Funder ID 818123 Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Seventh Framework Programme Crossref Funder ID 603418 Managing Impacts of Deep-seA reSource exploitation
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
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