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

• Main Authors: Carreiro-Silva, Marina, Martins, Ines, Raimundo, Joana, Caetano, Miguel, Bettencourt, Raul, Cerqueira, Teresa, Colaço, Ana
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Aquarium number; ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Cnidaria; Cobalt; Condor Seamounts; Copper; enzyme activity; experiment; Experimental treatment; Experiment duration; gene expression; iAtlantic; ICP-MS; Inductively Coupled Plasma Mass Spectrometer (ICPMS); Inductively coupled plasma mass spectrometry; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Managing Impacts of Deep-seA reSource exploitation; Manganese; metabolism; metal bioaccumulation; MIDAS; North Atlantic; octocorals; Sampling_Azores_Cold_Water_Octocoral
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.948404; https://doi.org/10.1594/PANGAEA.948404

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).